[@Spud] Female Thor [hider=link][url]http://marvel.wikia.com/Jane_Foster_(Earth-616)#Becoming_Thor[/url][/hider]

You can make your own interpretation of the character.  It does not have to be just a genderbent version.  She can have her own personality.

[quote=@Meridian]
Could I be Quicksilver or Iron Man? Pretty pretty please?

EDIT: I'm a fan of Marvel movies, but I'm not familiar with the comics. Do I need to be?
[/quote]

Either character is fine (eventually, you can do both!).  Also, you do not need to be a comic book lore know-it-all to do well here.  When in doubt, you can look stuff up on Marvel Wikia.