Well I went with Russell first because I still believe he is the greatest all time.
You play a sport to win and that's exactly what he did. He is intelligent, a leader and interesting person. So what if he couldn't jump from the free throw line to dunk or score 100 points.
Russell was dominate when the league was at it's strongest with all the teams being strong in talent. And for the record as we all know, Chamberlain's numbers were always quite noticeably sub par against Russell.
Second was Larry Bird. Phenominal, had that winner killer instinct about him and could just toy people to death. He was playing chess while everyone else was playing checkers I belive Tommy Heinsohn said.