I'd say DLH, Mosley and Hatton were tougher opponents stylistically.

To me, all Canelo has in his corner is size and the possibility that Mayweather might suddenly "get old" overnight.

I think anyone who thinks Canelo is Floyd's toughest test above 140 is either severely over rating Canelo or is playing a little bit of revisionist history with Floyd's opponents.

DLH, Mosley and Hatton were acknowledged as "over the hill" a few short years after Floyd fought them, but when he DID fight them they were considered serious threats.