I hate that we can rotate our cars in midair. We can now adjust how we are going to land, which makes doing stunts (the number one GTA past time) completely pointless. If we are guaranteed to land perfecty everytime, there's no risk or skill required to pull of a jump.
ALSO it's annoying! When I'm driving intensely and the car gets just slighty airborn, the rotatycarinmidair kicks in and so I try turning the wheels left a little, the car rotates onto it's roof.
Fist fighting is pointless because you punch someone and 20 seconds later, cops are shooting at you. They put batons in the game, why don't cops use them? Come on Rockstar!
Also, if you punch a cop now, you get an inmediate 3 star wanted level.