Mata Nui because I actually know what's that from and I don't know how many people do xD Ummm...Kim Jong Un vs Vladimir Putin
Link, since he can use his other weapons to help him out. Ragyo Kiryuin vs. Tiger Mom for worst mother ever.
Air conditioner. Don't know what a Swamp Cooler even is, but I'm assuming that it's good. Boba Fett vs Deathstroke, both are armed to the teeth.
revolver ocelot, he can kill anything that moves. John marston or Aerith in a flower picking contest before dying partway through the game.
Aerith, she dies halfway through unlike John. Liara T'soni (Mass Effect) vs Tetsuo Shima (Akira) in a telekinesis battle to the death.
Liara. She's smarter and more experienced. She also probably already knows his weaknesses, because it's her job to know things like that. Samus Aran vs. Cthulhu.