NBA Live 2010 is a step up from the series. Glitches are still there but overall, the game's performance is ok.
I noticed that when I was at the Pro level, I managed to cream my opponents and pound them by winning 40 points or more. When I switched to All-Star, the computer beat me easily and losing as much as 60 points. I don't mind losing and I save every game even if I don't make it to the playoffs, but I think there is a glitch because I can't seem to win or lose by a close margin. Is it a glitch? I don't know.
But aside from my selfish issues, the game became smoother and the graphics better, way better. Though it lacks that revolutionary change, the most important aspects are still there: realistic and entertaining gameplay.