While predators should win when you look at it on paper, they are prone to arrogance. Much like the first two predator films, where the predators reveal themselves to their prey, and get wasted. When a predator gets cocky, the aliens will strike, and kill him. When they think they're safe, they die. Aliens are sneaky bastards, and cloaking doesn't work on them.
However, Wolf is an elite xeno hunter, presumably having much experience of fighting aliens in the past. So, it's fair that he knows what he is doing, and can make quick work of them by traps he knows will work, and tactics he knows will work. he knows that he can't just sit around, and he must always be alert.
At least, that's how it should be portrayed.
The real problem is that Wolf looks like a normal pred, and instead of showing he is better than normal predators, they've made the aliens look weak and retarded. I mean, he holds thier necks and all they do is flail about like Grid when he gets thrown onto the floor in AvP.
I don't think who wins every single fight matters, I just care how the two monsters are portrayed in battle. It needs to look like a there is a struggle, and that they are almost equal. It needs to make sense. Making the aliens look silly does not make Wolf look tough. It makes him look like an orderly at a mental asylum, sending patients back to their rooms.
