Bitcoin Forum

which one is best for trading alt coins? poloniex or bittrex?  ??? ???

Neither of them, don't rely on 1 or 2 specific exchanging services, that's bad and further centralizes the market, although trading is not as profitable as everyone believes, you can't simply earn hundreds of dollars by a few mouse clicks, I'm speaking from experience as I and my borthers have suffered loss of fund so many times. so please be careful.
I could suggest for instant exchange:
1.Shapeshift.
2.Changelly.

And for day trading having the ability to put your own orders:
1.Cryptopia.
2.C-cex.com.
3.GDAX.
4.Kraken.
5.Yobit.

If you're serious about trading altcoins and want a big selection, you practically have no other option than using Poloniex or Bittrex, they have the biggest trading volume.
I certainly wouldn't recommend Yobit, just look for reviews, many people are experiencing problems with them.

Most of the other exchanges you've listed only have a couple of altcoins to choose from and while cryptopia has a pretty big selection, their UI isn't really the best and they do not have a lot of trading volume.

The question you asked is very simple but very complex to answer because trading of altcoin have gone beyond just buying and selling which any simple exchange can do easily to leverage, margin trading, stop limit trading tools.

I like the 2 exchanges but i will prefer to choose poloniex by considering the high volume of trading, very low bitcoin withdarwal fees, ability to place a pending order on trades, the margin leverage and so on.

I also like their customer support quick response. 

bitrex

I trade on poloniex, and I'm satisfied with them. I'm not a big player so for my little needs they are ok. I quit trading on yobit months ago, they are slow, bad support, and this investing program they are promoting now is smell badly.
I can't say much about bitrex, its mentioned here many times and they have good reputation here. Visit both and made your own decision.

I trade on different trading sites where i can find something else or sometimes i found out that the altcoin in one trading site is cheaper and in another trading site the altcoin there is expensive so i will buy cheaper and send it to another trading and sell it there i mostly trade at poloniex , yobit and bittrex some trading site is from google just search for it.

For my side i am use bittrex and i am satisfied with it.but i have no account on poloniex and i think that i am open an account on polionex.my friend use poloniex and he said that it's a really good site.but bittrex also a good site and i just loved it.still i don't see anything wrong about this 2 site and this 2 site is very popular and good site.

I already try poloniex and i do not encounter any problem on that site all my deposit and withdrawal always credited but 1 thing i concern is the time of confirmation in every transaction it takes an hour.

For me its poloniex and kraken.  I like both platforms i've never had any issues with either site.

I like the alt coin trading on poloniex and I like there loaning system there too I use a bot to work my trades over on poloniex making many short loans daily checking the rate and order books for potential openings for the bot to make some smart trades

it is mostly based on preference and features you are looking for. for example poloniex has a powerful API with lots of options if you have your own bot. and bittrex lacks that.

but bittrex has a much better platform. the charts are awesome with lots of flexibility and options on them. while poloniex platforms sucks.

the tie breaker for me are the rules of poloniex, and also the fact that they go down and are generally slow and out of reach in times of pump and dump. so i went with bittrex.

i see someone suggested Yobit. STAY AWAY from that place. it is a bad service and a shady business that will most probably rob you blind.

bittrex is better. They have more coins and support everyone. FAst verification, too. stay away from polo

Polo and bittrex are good exchange sites for trading. But poloniex only listed few altcoins and bittrex supported more coin than that. Also, when some altcoins get dumped like crazy on poloniex, you will be encountered with lag and also poloniex will down for a while, usually after they already up, the price already falling down

Bittrex because of fast verification and no delays

Poloniex is best to trade and i was trade on poloniex this is where i trade on poloniex and i trust to leave my money and best trading. We can make profit easily and have an profit. Poloniex is trusted in trading because your money will safe. And most popular currency is in poloneix and you can wait you trade and easy to use. This is a good site in trading.

Both are fine and I use them interchangeably.   It baffles my mind Kraken doesn't add popular cryptos like NEM meanwhile they have stuff like Melon listed. They are rarely mentioned here when they have the potential to be as popular as poloniex if they gave a damn.

At the moment am not sure if that's a good thing or bad thing relying on exchanges which have the biggest trading volume.
I guess experience is the best teach but tbh trading is good as gambling
good suggestion!
there are certainly some good altcoins out there that have not  made it to the bigger exchanges but I see no reason for restricting ourselves to alts on the popular platforms

Poloniex has a larger trading volume but Bittrex has a larger variety of coins.  It's your preference or do both.

Best would be not the right term as they have unique features.

There are coins that listed on Bittrex but not listed on Poloniex and vice versa. I think better find the answer by yourself. After all since they are both online exchange, we didn't know who will going to become a fraud first. Just kidding, just reminding you that is the risk of using exchange. As of now both are doing good so you might try one and sees what is fit at your own criteria.

Poloniex is best in trading . because of its popular and most popular altcoins is in poloniex. Poloniex is best exchange. In poloniex where i trade because its trusted and my money is safe. You know when to trade and you can update and i'm satisfied and for trade and this my favorite in trading. and traders invest in poloniex because most of popular altcoins is in poloniex

I'd say Bittrex, but I recommend you use a variety (of the trusted exchanges out there).

Here are my top 3 Exchanges
https://www.youtube.com/embed/231uxYom5dA
 (https://www.youtube.com/embed/231uxYom5dA)

i just share my experience use these exchange that since 2014 i had never any issue regarding my account and in my point of view that both are the best exchanges with good positive feedback but indeed poloniex had more huge volume support for altcoin than bittrex

Too many scam accusations against poloniex and therefore, I do not like it at all. Only the margin is a special service on poloniex which bittrex does not have

Nope i think there's No scam accusation in poloniex but instead their system are quitely got an error on these past days and that one is been mocking up by the people who used to trade in their, But all things are been fix right now and I trust this exchange rather than any other who have shit service and yet still existing on their ecosystem.

It depends on what you are using poloniex is a mobile friendly platform but there are so many complaints about the site so right now i am trading on bittrex no problem at all.

I think either bittrex or poloniex have a good reputation, because in this exchanger is available big coin coins that have good potential and deserve to be traded, so here we can have a chance to profit from coin coins we trade

Both of them are the good exchanges to trade on. They both have high trading volume but on poloniex there are only few coin listed while bittrex support more coin than poloniex. And also the verification time on bittrex is less.

I like poloniex and kraken, both are good one.