I agree about Bryan. The problem is they raise guys too fast and then others who might be deserving get stuck. This is also why titles like the Tag, U.S., Inter-Cont, and Cruiser need to be treated like they are really extremely important and not just a stepping stone to the world title.
Stables are important because it can give a bunch of people TV time without them performing. Maybe have them do the dark matches. But 2nd Gen DX didn't always have HHH, the Outlaws and X-Pac going the same night....but they'd roll out and cut a promo together, and be at ringside. That's development stuff there.
I think they should combine the world titles but in a way that nobody is the champ for a few months and its bracket style all the way to one of the main PPVs.