I'd buy practically any of the short run mainstream superheroes.

Moon Knight
Black Panther
Iron Fist
Luke Cage
Ms Marvel
Spider-Woman
Savage She-Hulk
Ghost Rider
Champions
Invaders

and of course...

NEW MUTANTS

Not really so interested with the fringe genre titles, but I'll pick up practically any of the mainstream superhero short runs. Might think twice if the property is super-lame.