I feel like Ronaldo had to work ALOT harder to squeeze every ounce of his potential out of him, whereas Messi was more naturally gifted (regardless of the *alleged* HGH Barca fed him as a kid)... But I rank Ronaldo as better all round player...
Like Fergie I think told Ronaldo he needed work on his heading, so I believe that summer Ronaldo spent daum near every day with weights on his ankles practicing his heading and came back with the hang time of Michael Jordan and scoring mad headers...
Another story is him getting kicked to schitt and bullied in the EPL, so he bulked and became a beast, so I feel like he worked on all his weakness and things that hampered his game and overcame them... Now he has gotten older he has adapted his game again trying to get round something no one can out run forever, father time... You gotta respect his hustle...