If there's one thing that I really can agree with of what went wrong with the prequels, it's the overuse of CGI. Not so much for the lack of realism, but for the weird awkwardness of the bouncy, energetic, overacting characters vs the deadpan serious actors who were getting bad direction.
Detractors like to say the acting was wooden. I tend to think of it as that they can indeed act (given their other roles in other films), but were given that painful old style of direction... that seriousness means complete and utter emotionlessness. No wonder why any time they expressed the slightest amount of emotion in their line readings, they came across as hammy (Obi Wan's "YOU WERE THE CHOSEN ONE!!!!!" comes to mind). So glad the direction in these new films is in not George Lucas hands.