I blame Ice Cube
He pretty much single handedly brought the film down as everyone focused on him and how bad he was. Everyone else was entirely fine in my opinion; what's amusing is watching it now, this many years later, I wound up getting a far bigger kick out of Statham, who was a relative unknown when this movie first came out.
In Cube he was pretty much the prototype Riddick with none of the charisma and really dragged the film down some pegs if you can't overlook his acting. If you do, though, as people have said it's a better Doom movie than the Doom movie at least!