Finally I played the demo of RE5 on an Xbox360 (though by an illegal way, but I really had to play it) and my first thought after playing the two areas of it was:
Resident Evil 4.5?
It just seemed a revamped version of Resident Evil 4, with better graphics, less horror and more shooter felling. (And gameplay was kind of step-back since I played RE4 on the Wii). Although, I'll have it for my future PS3, its a good game. But I just had the feeling it wasn't a sequel that 4 deserved. Anyone felt the same?
EDIT: Trolling not allowed. If you didn't play the demo don't bother asking.