Also there is...NO...absolutely NO speed factor involved in Canelo and Cotto...but Khan, Pacquaio and Mayweather is a question of who's fastest, who gets off first, and who can string together combinations. Can Floyd's vaunted defense shut down either of theses high octane offenses by Pac or Khan? Can khan outbox both older fighters? Can Manny hit on all cylinders at all angles and overwhelm Floyd or Khan? Much more material to work with.