I enjoy watching KJ Noons use his hands when he fights. He got some ok boxing skills, he moves his head when he throws and seems to know what punch to throw most the time.
He looked sharp against Diaz, for sure, but did you see his last fight in Strikeforce?
Totally out of shape, slow as fuck, and just overall, terrible. I think his 15 minutes are up.
Randy Couture looked sharp in the first Liddell fight, but since then it's been a steady decline, and he's well past it now.
Gomi once upon a time was quite good IMO. He went to the body like an actual boxer. Sadly, he became a bit of a head hunter, and his overall skillset declined. Maybe he's rejuvinated though, we'll see. He's got the tools, surely enough.
Penn, and Rampage come to mind for me, as examples of good use of boxing skill. (Albeit Rampage is a bit schizophrenic having one good performance and one shit performance)
JDS looks terribly robotic and ponderous to me. Put in a boxing ring with even a journeyman and he's going to sleep. Can't argue with his results though, the man packs a punch.
Marcus Davis is reputed to be a boxer, but, honestly if he COULD hang, he would. He's really nothing special as a boxer, and likely couldn't crack the top 100.
Somebody mentioned Anderson Silva..... anybody that gets knocked on their ass by Chael Sonnen has shit boxing. Sorry, it's true. Delusions aside, Anderson's boxing is a shit sammich.
If you're watching mma to watch guys throw hands, you're watching the wrong sport gents.