The things i'm most annoyed about are the things which were advertised as improvements/fixes and just aren't...
The prime example being Manager Mode which has actually gotten worse (in 09 you could make it somewhat realistic by setting "rules" for yourself).
Another being the giant Virtual Pros supposedly being slow and not very agile... what they didn't mention is that you get slow midget 33 rated centre backs who make these "slow" giants seem like Ronaldo.
Another being the addition of snow... what they didn't mention was that you have to play it with a white ball.
Another being gameface... what they didn't mention was that it only does the bottom half of the face and a lot of the time you end up with asian eyes and the wrong skin tone.
I could go on... they falsely promoted things which are actually fucked up.
Commentary improvements is another bare face lie an all.