Garrus and Wrex of the Mass Effect Series, square off to see who is better.
They Fight in an empty apartment building, with no idea where the other is. They have the their standard equip (the stuff they start with, that they can actually use in the games.) Garrus gets his mass effect 2 stuff if it contradicts mass effect 1.
Empty building with neither knowing where the other is?
Garrus has a massive advantage here, if he can set up a good vantage point, and I am betting he can, he will dominate. He held off the three largest merc groups in the Terminus for three days.