I'm busy implementing the Uno Tag System into my MUGEN copy, and while I do know how to play most of the characters on my file, my favorite characters are y.y's Hol Horse, Infinite's Deadpool, Kishio's Donald (fight me) and Muteki's Bridget. I give characters different health values based on their general shape, story, and for balancing reasons.

The characters I hate playing against are Cybaster's Goku and Vegeta, though I've managed to slay the Prince a few times. Also, I find that Jmorphman's Chun-Li has an annoying tendency to grab me all the time.