I enjoy watching Cena pretty much any time he's on WWE programming. Whether it be doing an interview backstage or doing a promo or being in the ring, it's rare that I actually dislike what he does.
I've enjoyed every single one of his main event matches this year, and I've liked most of his TV stuff, even if it isn't quite on the same level.
I really think that he should drop the title soon. I think it's getting to the point where I just can't see anyone taking the title from him. Sure, that means the winner of the title would be a surprise, but for me, that'd be more of a "what the hell ?!?!" surprise.