Cena doesn't sell moves!? That's ALL he does! His gimmick is he gets the shit knocked out of him and then recovers in the end (a la Hogan). You just read what people were putting on here 2 years ago, cus hardly anybody bashes Cena anymore.
Cena is not stale on the mic either. Try looking up his youtube videos. Sure, he's been watered down since WWE went PG, but he has the talent.
If you knew ANYTHING, he isn't his "whiteboy rapper" character anymore. That's where you have proven to me that you, sir, are ******ed.
Rock/SCSA feud was only great and so long because the WWE didn't have as big of a main event roster and only ONE WWF(E) Championship. So when you only have, in that time frame, The Rock, Mankind, SCSA, HHH, Taker and (eventually) Kurt Angle in the main event, of course it was easy for them to repeat Wrestlemania matches. In the WWE's current main event, we have Cena, Orton, Edge, Batista, Taker, Swagger, Big Show, Jericho, HHH, Sheamus, Punk, and Mysterio; not to mention all the other superstars that we just "need" in the main event. Add the extra PPVs, and feuds go by a lot faster than they did 11 years ago.
So with that logic, yes, it is hard to have another Rock/SCSA feud. But if I had to pick one, it's Orton/Cena.