I liken the difference between Banks and Rondo to that of running backs in football. Banks was strictly a north-south guy who was best going right for the score no matter who was in his way and Rondo was the edge back who could weave around, find the open hole and be versatile as to what to do with the space once he found it.
Banks got the ball, ran straight to the net and tried to drive and shoot everytime time, seemingly whereas Rondo can move around more, has better east-west motion and better body control and will drive and shoot when it's open and pass if that's the better option, which, he is always looking to do first.
BTW did anyone else love that move into the paint the other night where there was no lane so he dribbled beneath the backboard and used Perk on the other side as a pick for a wide open 6 footer? You know that is open to him just about all the time if the Celtics have two players on either low post position and Rondo can squeeze his man off him with those picks. I'm glad he has finally recognized that option is there for him because it has been there 3-4 times a game just about all season.