Weird of them to use multiplatform characters when you can easily fill it out with Sony/exclusive ones.
I'm gonna stick to the original mo and say
Muscles: Kratos - naturally
The brains - Hmm maybe Sly. Masterfully planning things and the like. Edit: damn Otacon of course!
The fixer (I don't really know what this is meant to mean) - Drake - All rounder, fighting, shooting, solving puzzles
The Beauty - Nariko - beautiful and a great fighter.
The Trigger man - Hmm probably Snake.
The butcher - Cole - Just electrocuting everything lol
The Wild Card - Parappa! Dude is all manners of crazy.