Be VERY careful of C-CEX.  I like them and use them but when they delist a coin they pretty quickly delete the wallet and your coins are gone forever.  (But I suspect they simply just dump them on other exchanges for their own profit.)

But regarding the actual question:  Bittrex / Cryptopiz / C-Cex are my main exchanges... PLUS I use ShapeShift.io when I need something done quickly.