Rodman was one of the greatest on the ball defenders, whereas Wallace is one of the best helpside defenders. Both have a tremendous knack for the ball. The better rebounder was probably Rodman. He knew where the ball was going to come of the rim as soon as the ball left the shooters hand.
Rodzilla. Wallace is an excellent rebounder and defender, but Rodman would probably kill himself and someone else to get a rebound. He absolutely didn't care how he did it; completely reckless. That's what made him insane on the boards.
He was a hard-working hustler who went after every rebound with wreckless abandon.
He was a tough defender who used to get into opposing players heads and throw them off their game. Sometimes he resembled more of a WWF wrestler than an NBA player.
There is a reason that he was on Championship ball clubs in Detroit and Chicago. He is the type of player that fills a need. He knew his talent and he developed it to its greatest capacity.
I was a Rodman-hater in the day (I loved Bird's Celtics). But I appreciate his game and his work ethic.
Ben Wallace is not really a good comparison in my opinion.
I see Ron Artest doing alot of the things that Rodman used to do. Artest is very similar in defensive prowess and hustle. But he is no where near Rodman in rebounding. However, Artest is much more talented on the offensive end.
Until any of these guys get a ring or two Rodman is still better.