I would make a Stealth Team:
1) Altair (Assasin's Creed) - A master of the shadows. He will kill your entire team before anyone knows what happened. (nicely said HoodlumX )
2) Garrett the Master Thief (Thief)
3) Sly Cooper because he is awesome and funny
4) Gabriel Belmont (Castlevania: Lords of Shadow 1 & 2) Only team member to not be stealthy, but he's still badass
Big Boss (MGS 3 4 5) - uh....duh?
Ryu (I think that's how its spelled Street Frighter) - "Hakoken!"
Joel - Just cause he's the main character