At present, a bitcoin exchange is not mean the bitcoin exchange. For a bitcoin exchange, it usually include a few altcoins such as litecoin, dogecoin, and etc.
I don't mean to say that these altcoins are bad, but if a exchange is doing trading with altcoins one or more, please don't named by "Bitcoin Exchange" and that can be named as "coins exchange", "virtual currency exchange" or any others, but don't "Bitcoin Exchange" please.
As the Bitcoin Exchange, it should focus on bitcoin trading. We are pleased that the Bitstamp refused to support liteoin once this year, even we can’t see any fancy trading like short or margin appeared in here. This is truly worthy of our trust, if you are a bitcoiner.
And we can see, Coinbase, Bitpay, and another bitcoin payment company, I have never heard that they were doing the business of other coin payment except Bitcoin, so we call them "Bitcoin Payment".
So seemingly, the company that do bitcoin Payment is always a lot stronger than do bitcoin Exchange, because of the former confidence in the firm and the target consistently.
I have to admit I am a hundred-percent Bitcoin fan. I believe if you persist in Bitcoin, you will have a very broad and bright future.
Here, I found a few bits of Bitcoin Exchange, they insisted their original intention in this turmoil era of virtual currency.
They are:
Bitstamp
https://www.bitstamp.netLakeBTC
https://www.lakebtc.combitcoin.de
https://www.bitcoin.deCheers for them, the real Bitcoin Exchange!
(if you find another one, please reply to me, i will add it)and the most complete of exchanges reviews can be found here:
https://bitcointalk.org/index.php?topic=695082.0