Who's the best boxer in MMA?

[DMan37]

During B.J. Penn's last fight Rogan talked about Freddie Roach saying that BJ had the best boxing skills in MMA.

So is it BJ? He's gotta be on the short list but if not him, who?

Not even so much who's the best striker exactly cause you have kicks, knees, elbows, etc., Just the boxing.

When I think of the best boxer in MMA, BJ Penn doesn't even come to mind. Perhaps it's because his greatest wins have always been submissions.

I'd say guys like Stephan Bonnar, Gregard Mousassi and a few others bring that thought to mind. There are many others that come to mind but those two stick out to me. Of course, Chuck Liddell has to be mentioned when the conversation is "boxers in MMA" just by his dominance in the cage with his hands from the past.