Woah, a lot of you guys are underestimating Bynum. He'll never be a superstar. But he is 7 foot, very mobile and has had a number of dominating games. I think he'll make 3-5 all star teams before his career is over.
..but Bynum is injured every year, and i have always questioned his fire.
I do not question Perk's fire for a second.
Bottom line: Bynum is bigger, longer wingspan, more athletic/mobile.
But Perkins has more fire, better health and is a better defender.
Most people around the NBA would take Bynum, hands down. For me and the rest of you: the fire, the better health, and the years we have invested in cheering for Perkins make him the favorite of the 2.