Well, it just seems to me that it lacks a lot of the customization KDE has. Don't get me wrong, I could have missing packages or something, I don't know. The only GNOME I am using right now is with SLED, and that's hacked to high heavens.
I think it's just that I've become so used to KDE... it's feature packed. I am not usually a fan of bloat, but a lot of the features in the control center I will actually use at some point or another.