I agree with any wrestlers who say about getting better pushed on Smackdown... Smackdown is really "push central"... ECW isnt good for pushes cause its so packed for only 1 hour. But Smackdown has pushed alot of stars, and actually puts on some of the best matches. Look how MVP, Kennedy and Hardy have all been pushed and made a name on Smackdown... And also, Batista and Edge are getting great pushes on Smackdown as well, so I think the writers there give out more chances for wrestlers to climb the ladder.
On Raw, as was stated in that article, Brian Gewirtz seems to be doing the same guys over and over, and I cant remember the last time a star was created on Raw...