User blog comment:BattleGames1/Deadliest Warrior Battle 10 - Revy vs Niko Bellic/@comment-4552610-20130311020026

Weapons
Pistol: One would say using two guns doesn't give one an advantage. However, if you are ambidextrous like Revy, you can use both with equal accuracy. Also, you got the number of rounds for the Beretta 92FS wrong. It can carry 15 rounds. With that said, the Dual Beretta 92FS wins is ammo capacity.
 * EDGE: Revy

SMG: The H&K MP5/10 wins in Mag size, rate of fire and Muzzle velocity.
 * EDGE: Niko

Explosive: The M79 Grenade Launcher isn't as versatile but it' rounds are easier to carry and superior range gives it the win.
 * EDGE: Revy

Melee: The Baseball bat has more reach and easier to use.
 * EDGE: Niko

X-factors

 * X-Factor: Revy vs Niko
 * Brutality: 99 vs 90
 * Niko is brutal but Revy loves to splatter brains about.
 * Combat Experience: ?? (90) vs 87
 * Niko has some military experience but spent allot as a gangster. Revy is harder to identify as her history but is likely a much more combat oriented as she spends less time smuggling and more of killing.
 * Killer Instinct: 99 vs 90
 * Same reason as the with the Brutality. Revy is just plain more murderous.
 * Physical Strength: 95 vs 95
 * Hard to pick. Both warriors are strong and very great. However, when in up close, agility is where it will be but their isn't an x-factor for that. Why, I don't know.
 * Psychological Health: 75 vs 75
 * Neither are really right in the head. However it shouldn't be too big a factor. Both are able to control it and keep focused.

Overall
My vote goes to Revy. She is the better shot, far more brutal and has the benefit of being ambidextrous. This should allow her to leave as Niko a barley identifiable body.