No it's not just the graphics, and it's certainly NOT the aliens.
Crysis 2 - The first step closer to destroying the series. The best thing with the game was the nanosuit and graphics.
Crysis 3 - Back to the jungle. But have they forgotten why we liked the jungle in the first place?
Here are some word for you: Wide open areas, Physics, freedom.
They have ruined everything. The best game ever has turn into a failure.
Before you say anything, I want you too see this video from 3.30:
And then tell why on earth my money should go too Crysis 3, because Crysis 3 looks just like Crysis 2, a good game some say, but a failure too the original Crysis.