Doesn't surprise me, Predator movies have always been a very mixed bag. Discuss; using diagrams where appropriate:
Predator 1: Amazing, obviously
Predator 2: kinda shit? Apart from the bit where Bill Paxton dies that was creepy af
AVP 1: surprisingly good
AVP Requiem: absolute shit, like possibly deliberately so
Predators: I liked it but I may have been the only one who did
The Predator: haven't seen it (for many, many good reasons apparently)
Prey: surprisingly good
I reckon 2 was great, that still had that Predator feel. I agree, Requiem was meh. I actually think the Predator could have done without the Alien link altogether and blazed it's own path. It certainly makes both franchises look fucking retarded in Badlands.