What's the best altcoin to invest in it RIGHT NOW ?

I have 3 ETH and i want to buy some Waves and hold it for long time. Which will be the best option? Buying Waves or Hold ETH!

If I could pick one crypto that suits for holding, that would be ethereum. Do you agree that this one is good for a holder ?

 It's more established than other alts in the market and  companies are adopting it.

Which coin or all coins would you choose for your portfolios, and why?

How do you feel about long-term investment? Do you see the priorities in this? What do you think is the reason for this? Where to invest in your opinion?

As I have noticed these days, when the ICO hasnt finished yet and the sale was still on going, the bounty tokens has already been distributed and also unlocked they sell it immediately on forkdelta or etherdelta for a much lower that ICO price, in which it could greatly disturb the sales in tokens. As for you the investor on that token, would you panic when you see that the tokens you own already selling at much lower price?

What is the best choice regarding investing in these coins? Lately I have sold my Ethereum and now I am waiting for the right moment to buy them again, but shall I also buy Ripple and Litecoin?

I have a question.

What is better? To keep your coins on some Exchange site or to open wallets for each coin?

I would like to hear some advice.  What are pros & cons of each option?

Thanks