I'm a WWE Mark lets just get that out of the way early. But I'm not going to pretend that they're perfect. I believe that they're head and shoulders above all of their so called "competition" in every way, but that's not to say that there aren't some things I wish would change about it.
Original Storylines
We've been essentially having the same storylines over and over again for quite a while now. It's always either "I respect you but I want your championship," "You attacked me so I attacked you and now we attack each other every week until the PPV," or "You cheated so I want a rematch." Why do the even have a creative team? They haven't had an original story in forever, why are these people being paid?
Over Scripted Promos
Don't get me wrong, I prefer promos this way as opposed to the TNA style of giving them full control and no direction and thus you get the word asshole uttered every 35 seconds. However, I wish they were a little more relaxed with it. I don't like seeing someone cut a promo and looking like they're reading from a teleprompter. I need to see some of the actual person in the promo, which is what you get with guys like Cena and HHH.
Divas
Women wrestling is absolutely terrible. Honest to God, I have only seen one respectable Women's match in my entire life, everything since has been ridiculously bad. They are so talentless and dreadful to watch that it outright pisses me off that they waste a weekly segment on them instead of giving it to a guy that can actually work who deserves some spotlight.
Those are just off the top of my head. I'm sure there are more.