Check the new projects, they tend to solve more problems plaguing crypto currency in general, block chain is still so far from perfect and by releasing newer projects we will take the block chain to the next level. The one that I am looking at right now is called BTCN. They have good idea and transparent project for it. Also, you can see the names behind the project and their developing team seems committed to constantly improve it. Presents in CMC and external exchanges is also important.