Is that a joke? My thoughts on De Rossi are in this thread if you care to read. I think it they show I've seen him play.
He isn't better than Yaya in every category. On current form, I'd say he isn't better than Yaya in any category.
De Rossi has a knack of going in too late on his challenges. His positioning leaves much to be desired, although he reads the game pretty well. He tries to be a regista and spray balls, but a lot of the times the balls are shite or weren't the most intelligent option. He's missed ridiculous amounts of passes really. Usually from trying to do too much, but not always the case. He shoots from outside the box to Row Z more than Yaya. He's not that fast, maybe around the same as De Jong. Yaya is the better passer, and is more technical. Yaya also loses possession far less than De Rossi. Let's not forget Yaya is more dynamic as he can play AM, DM, CM effectively. His touch is inferior to Yaya, list goes on.
Need I go on? If I make a comment, clearly I've seen him play enough to feel confident to post it online for the world to see....
That said, every player has their weaknesses. Still though, on his day, De Rossi can be a monster, but he's hardly the player he used to be. The guy diminished in his game in 2009 and 2010, he's certainly not the 2007 and 2008 player anymore and a lot of Roma fans noticed this too....well that's a clear thing. Possibly the easiest thing to see is the amount of passing mistakes he has done. Lately, though I've watched him and he seems to be finding some old form which is promising. Still would be worth a punt, though imo.