#6 His proficiency as a heel and a face remains peerless

One of the most significant reasons why Punk remains such a revolution in the wrestling business is due to the fact that he remained extremely proficient as a heel and a babyface.
He garnered nuclear heat for his Straight-Edge Society gimmick and remained incredibly distinguished as a strong protagonist on the main roster.
WWE's huge mistake with John Cena revealed - Watch Here!
His inventiveness spoke for itself, with the former WWE Champion proving the management wrong on every single occasion with his unbelievable versatility and prowess as an in-ring performer.
He was equally proficient as a face and a heel, and it would be hard to argue that there's any other performer who was as uncompromising and efficient as CM Punk.