aren't you satisfied with google answered to your question?  Well, by getting other's  experienced in trading it is still much better to know  what's there view about your concerns. There are lot of exchange platform which are good to trade for, there is c-cex, yobit, novaexchange, cryptopia, bittrex, poloniex and bitcoinwisdom and others. But the best thing platform that I could give a good recommendation was Poloniex and bittrex. Though I'm not saying the rest of the platform that I had mentioned was not good, no its not what I'm trying to intend to.