Battle Royale! (Tournament)

(I'm not quite sure where this should go, but quite a few choices are from TV Shows, so I'll just put it here in the TV forum..)

Okay, my last tournament idea didn't go over so well. I hope nobody minds, but I'm going to take one last crack at making a tournament.

The rules are fairly simple: Everyone nominates characters (real or fictional, I don't care) that you want to put into battle. Once enough nominations are submitted, I will randomize the submissions and the tournament will begin. Everyone then votes on who would win in a fight. First to 5 votes wins. (If the thread is popular enough, I may extend that to 6 or 7.)

If you choose to pick larger-than-life characters like Optimus Prime, they must go in a separate list of "Ultimates". (A giant like Optimus Prime could easily crush a normal-sized character like Batman, so it wouldn't be a fair fight) However, "Ultimates" are not required.

Everyone is allowed 10 nominations.

I'll begin with mine:

Combatants
Spike Spiegel (Cowboy Bebop)
Juggernaut (X-Men)
Naked Snake (Metal Gear Solid 3)
A Grizzly Bear (Nature)
Lan Di (Shenmue)
Mike Tyson (Boxer)
Clint Eastwood (Actor)
Nightmare (Soul Calibur)

Ultimates
Reptar (Rugrats)
Big O (Big O)