Uh.. hmm. .

I may want to play Static, a mutant with electrokinetic/electric form powers, and heightened bio-neural kinetics. 
This would be a very strong character, with a wide array of utility and secondary uses. Would probably be useful as a teacher. 

I'm also considering playing Coldsnap - a cross between Iceman and perhaps X-23 (regeneration)... I ran her last time I did a mutant academy, and it was fun... but its tentative. 

Or I could play Maria Beckett - I gifted telepath and pychokinetic with a seriously troubled history, probably suitable as a teacher 

Not looking to play three characters, just tossing out concepts to see what seems to stick best.