Well, I did liked it, I have to agree that it could've beena lot better and that Anderson simply did whatever he could to get the job done, decent imagery and a quick buck.
But it's not completely his fault, I think it's more Fox's fault by hiring him in the first place. If they were serious about it, they would've hired a better director (Scott, Cameron, Jackson or Del Toro), and Stan Winston Studios at least!
I thought the overall concept was pretty interesting, some of the visuals were really cool, I hated the Preds being all wierd phisically, and slow...but it definetly had potential, I enjoy it every now an then.
The good thing is that it completely resurrected the merchandise for both lines, because currently there's a lot of Alien and Predator products out there, and pretty cool ones! So, not everything was bad!
The thing is that currently Hollywood doesn't take chances, they want to sell products...but if good directors like Nolan or Raimi can make great movies with box office success, then somebody can do the same with AvP...unfortunately the problem is that FOX hired a coouple of Music Video directors for AvP2, but let's wait and see.