Kidd is a far better passer and rebounder, and is a better defender. If you argue that Billups is better than Kidd than you're beyond a homer. He's been the #1 Player On A Finals Team
Nash is a better shooter, rebounder, and far better passer. There's a reason he was named MVP and Chauncey Billups wasn't even an All-Star reserve
Iversons a far better scorer, better passer, and equal defender and rebounder. He's been the #1 Player On A Finals Team
Baron Davis is a better scorer, rebounder, and passer.
Marbury's a better scorer and passer.
Francis is a better scorer, rebounder, and passer.
Arenas is a better scorer and slightly better rebounder.
Think about it this way - if playing with Larry Brown and the Pistons hall of fame-worthy defense can turn a career bench player like Chauncey Billups into a Finals MVP, what do you think it could do for the guys mentioned above? Turn them into top-25 players of all-time?