Barao would not beat Aldo. Aldo COULD beat Pettis. Pettis would not beat Hendricks. Hendricks would not beat Weidman. Weidman would probably lose to Jones. Jones would not beat Cain. He's also beaten the former 2x LW champ in Edgar all the while holding the belt. No one else has this claim. No one. Aldo is easily P4P numero uno.