Pacquiao is that much greater than Marquez based on resumes. JMM while a great fighter but he's more known for his fights with Pacquiao than his own achievements. Pacquiao on the other hand is known more for his acheivements than his fights with JMM.

Pacquiao is the only 4 time lineal champ in history and 1 of 5 teenage lineal champions also in the history of the sport.