Bogut has never averaged more than 15. 9 points or 10.3 rebounds a game. Just two seasons above 2.0 blocks as well. Career FG% of 52.8.
Noah is averaging his career high in points 12.6 and rebounds 11.2 this year. Just one season (not this one) above 2.0 blocks. Career FG% of 50.1.
Those are good player numbers, but they aren't HOF player numbers.
Dwight Howard is shorter than both Bogut and Noah, but his wing span is 7'8". He hasn't been below 12.3 rebounds in a game since his rookie year and hasn't been below 17.1 points since his second year. 6 of his 10 years above 2.0 blocks a game. Career FG% of 57.9 (and he hasn't been below 57.2 since his second year).
That is a what a great centers numbers look like and that is a HOF player.
Reach matters. Especially when you are playing in the paint with the other trees. It isn't the only thing and you can be very good without the reach, but you had better darn well be physically strong, athletic as all get out, with a quick burst, and massive leaping ability if you don't have the reach and are going to be a HOF center.
I disagree. Reach helps, but it's not like it's the most important thing. (i mean that in a way that of course you have to have atleast decent wingspan)
Dwight indeed has long arms, but also had imposing strength and athleticism. I'll bet my WrestleMania tickets that if Noah and Bogut had Howard's strength and athleticism, they would also be able to easily average 14 rebounds a game and possibly dominate.
Besides, those two guys are already proving the point that not so long wingspan can still work in the NBA. It may not be HOF numbers but enough to be recognized as one of the best defensive centers in the NBA, or better, an MVP candidate. While they dont average the same amount of rebounds as Dwight, we've seen them have monster rebounding games. They are not as good as Dwight, but they are capable. And they have shorter arms.
Just for comparison. Bogut's per 36 this season puts him averaging 13.8 (via basketball-reference). If Mark Jackson is not stupid and let Bogut be on the court longer, he could be grabbing the same amount of boards as Dwight this season.