Okay he's not exactly perfect but who else would be better? There's no-one around the weight class who can prepare you for Floyd. The hardest thing about fighting floyd is dealing with his style and speed. At least Broner does a decent job of that. Floyd's power's although good is not really his best attribute.
Pacquaio and Martinez would knock him the fudge out! But these fights won't happen. It's like Floyd says "self preservation" and "my health comes first"
I hadn't actually thought of that but now that you mention it you make a good point. But strictly speaking in terms of who could spar with to get ready for Floyd I can't think of anyone else who would be better than Broner... snitching aside!