He's bigger, he's taller, has shown to have more power than Floyd.
Too big? Too big would be too much, meaning Floyd couldn't handle him. I think Floyd could handle Canelo, but yes he's big, bigger than Floyd. Too big for any other WW to be competitive, but not too big for Floyd because of Floyd's skills. Floyd has handled big opponents o fight night through out his entire career. It would be nothing new to him, but it would be more dangerous and more challenging now that he's closer to 40 than 25.