what would they be and what would you want to learn from them? You are just you from right now, nothing different, no powers. You can only take away what you learn. I was going to cap it, but then I thought of a few more.
Leonardio - stealth and dual swords
Batman - disappearing in a puff of smoke, art of escape
Riddick - stealth and knife fighting
Aragorn - sword play, tracking
Green arrow - business and archery
Paul Atredies - critical thinking, tactics
Master chief - squad tactics. hand to hand combat