Got 19/21 as well for my first time, and I've never read a single comic either! Guessed a few, too lazy to bother with the elimination process! Haha. Cool concept though, and a good lesson to anyone who wants to design their own characters.

Sedgemonkey: Since when have super hero names NOT sounded silly?

Some of them you can kind of guess by process of elimination.  Some of the alternate names sound silly.

19/21 for me (guessed right twice). 

NEEEEEEEEEEEEEEERD