[quote=@End Here]
Whats a good character sheet to use for this?
[/quote]

Nothing in particular. The only obligatory section of your character sheet would be a list of all of your character's abilities and powers in scrupulous detail; that, plus weight and height, since they're pretty important factors in a fight too. The rest is up to you; though certainly, including a backstory or important personality traits always make it better, as is a description of their appearance too - however, it all can go directly into the roleplay itself.