I see they both have 15 pro majors, which is the most respectably in that category. I don't know how to separate these two. Rosewall has 8 slams to Gonzales' 2 in addition to the pro majors, so technically Rosewall has more and would lead him to a higher tier. However, from what I've read Gonzales tends to be rated higher by experts. Is that cause he has more time spent as number 1?
Cristiano Ronaldo for Ballon D'Or 2013