If u see the way he trains,u can all tell where he gets his endurance,strength,speed and power from,for god sakes he lets people hit him with kendo sticks randomly.Floyd trains hard,but in terms of training from what i seen on 24/7,to me pacquiao trains the hardest,as if u were watching an oldschool martial arts movie.U all know the story,where at first the guy gets beat,and he meets a master trainer,aka freddie roach,and in time he starts to master his art of fighting,and i think pacquiao has reached that level.Pacquiao is not on steroids,because his upperbody has always looked the same,u remember,when vargas was on it and we all know how he looked,it cost him to,because all the injuries he had.Pacquiao has been blessed by god,pacquiao's power comes from his legs and from all the hard work he puts in the gym,kinda like with prince naseem.Enjoy a fighter like pacquiao for as long as he's here,pacquiao is becoming like ali,ray robinson,bruce lee,because they all had a style of their own.
Good technique comes from within ones self to have the mind control in order to master it and thats when u become great,pacquiao is at that level.