Most of his super featherweight ones and Arturo Gatti. He's not the same fighter he used to be, even though he's still a boxing savant at work.
The Corrales fight was a masterpiece. I also enjoyed the Mosley fight, the Corley fight, the Marquez fight (probably the only one that did), the Gatti fight, and the Hatton fight. (Ortiz fight was enjoyable while it lasted, as well) Such an excellent display of skill coupled with aggression. He really knew how to figure out his opponent and break them down in every way. I also really enjoyed the first Castillo fight. It was a great, closely contested bout. Both guys really showed determination in that fight.
All of his fights are boring. Actually, except the Emmanual Augustus fight, and parts of the castillo fight. Ortiz fight was actaully somewhat entertaining too.
Watch him vs Jesus Chavez, N'dou, Corley, Castillo 1, Augustus, and Hatton and tell me Floyd is boring.
i mentioned Castillo and Augustus, learn to read. Hatton wasn't exciting .. Chavez was ok, but had nothing to do with Floyd. N'Dou and Corley were alright. Castillo 1 Floyd did nothing. His most exciting imo was Augusts, because it was actually a back and forth scrap. I liked him in the Ortiz fight too. He's taking more risks now which is what he always should have done.
My favorites in no order are Castillo 1, Corley, Gatti, Corrales, and Judah. Hatton gets an honerable mention