I'll stick with infection. And I rewatched both P2 and Predators. My opinion of P2 rose greatly and I enjoyed Predators (again) a lot. I posted in another thread, but for convenience, I'll paste here.
(Re: P2) The few parts I remember vividly are still there, but I was surprised how well-assembled and coherent it all is, as well as how much I'd forgotten about how it all fits together. The story-telling is very meticulous. Everything is smooth and by the numbers, so to speak. In all, a very good experience. I'd also forgotten how soon Keyes shows up, how integral he and his helpers are to the plot. P2 may be the best of the Predator films. As an added bonus (for me), I rewatched Predators and... I still really like it!
Is it as good as P2? I think they're close. YMMV.