1. Better Passing Animations - When your on a fastbreak and you pass the player slows down to the point where the defence can easily catch up, and as someone mentioned before too many lob passes. Instead of a chest pass when your team mate is right infront of you how about a handoff, and when your moving the ball around there should be hard chest passes not soft bounce passes.
2. Better Moves Towards The Rim - When someone like LeBron James drives he should be able to completely destroy anyone under the rim... instead you get some weird quadruple pump layup. Also players like Kevin Garnett, Amare Stoudemire, or Dwight should be able to get more air on their dunks as their more athletic and shouldn't be doing dunks where they barely get off the floor just because their big.
3.Useful Crossover Moves - Their should be a less variety of crossover moves but they should be made more efficient and useful. I don't know exactly how to explain it but they should be able to make a player like Chris Paul or Deron Williams more explosive and deadly.
4.Better D - Players shouldn't be able to make 4 spin moves and end up in front of the rim. Enough Said
5.Crisper Off Ball Animations - Everyone should be doing something whether its holding your arm out to make sure you have your man within distance, fighting down low, or chasing people off screens. They should be made a lot more smooth to make things more realistic
6.More Emotion / Momentum Shifts - It doesn't matter how good of a team you are if the momentums on your side your close to being unstoppable and that should play more of a roll in how the team plays on court. There should also be more emotion like if a player hits a big shot he tries getting the crowd pumped or if a player takes a bad foul hes really mad and gets benched or something.
7."Lighter" Players - Everything feels heavy in the sense that when someone tries to make a block its like there hopping off the floor or when someone gets a rebound they get up a couple inches to bring it down. Players should be able to get up a bit more
8. Enhanced Dynasty / Be A Pro - Just add more stuff to do
9. Bring Back MJ
10. Keep the beautiful Live graphics, just try to make gameplay as close to 2k as possible and add more stuff
Lol I ran out of things to say after 8 so yea...