Sylvia did beat AA's ass once and stuff him another time, and he has wins over Monson, Vera and Ricco -- when really was really good.
Yeah, he was dummied by Mercer, but that could have happened to anyone who doesn't train. As for the Fedor bout, I wonder if he was just a little freaked out going into that one.
Sylvia's still a tough matchup for a lot of fighters, if he prepares physically and is in good shape mentally. I wouldn't mind seeing him against a couple of Strikeforce heavyweights, to see what he has left.