Predator is ok. Sometimes I really dig it (Winson's creature stuff is especially fantastic, and is the true highlight of the film) and sometimes it just rubs me the wrong way as being sort of overtly crass. I dunno. It is a really solid movie, and I enjoy watching it from time to time, but I have much more fun with Predator 2 than I do with the first film. It is batshit insane and just completely owns what it is. It's a wild, zany ride and all the better for it.
As for Resurrection, it is pulpy schlock and it suffers from a bad Whedon script, but I find Junet's directing to be incredibly interesting (despite not meshing well with the first three films) and it offers a lot of unique concepts/visuals that I can't help but find interesting.