Like I said in other threads in this forum, I think that Pacquiao's overall body of work throughout his career is more impressive than Calzaghe's dominance at super middleweight.
Pac is #1 I would be worried Calzaghe will not even be #2 or 3 soon the guy who never was is almost over.
pac is already no.1 in the ring ranking prior to diaz and also no.1 to other peoples list including myself. After the fight with diaz he solidifies the no.1 status he has. Sure diaz is no great fighter but he was a decent and tough fighter who is even a big guy at 135.