#8 Legitimate athletic credentials
Alright, this one may perhaps strike a nerve with most CM Punk loyalists. However, you'd be remiss to deny the fact that Kevin Nash is vastly more qualified than Punk in the realm of legitimate athletic credentials.
Nash played as a centre for the Tennessee Volunteers basketball team and played as part of the team for 3 consecutive years (1977-80) before a much-talked-about altercation with his team's head coach Don DeVoe hindered his run with the team. Nash was also involved in several fights on campus in his college days, and subsequently didn't play on the team for a 4th year, instead choosing to try his luck in the European basketball circuit.
On the contrary, CM Punk only chose to engage in legitimate sporting competition relatively late in his life, after quitting the WWE and retiring from professional wrestling in 2014. Phil "CM Punk" Brooks made his MMA debut in the UFC organization in 2016, and had yet another match in 2018, losing both his MMA fights decisively! Whereas Nash found great success in his basketball career before the unfortunate knee injury forced him to retire...