It might seem like I am stating the obvious, but as much as its hard to say being a FedFan, you have to respect that.
When it comes to the end of their careers and comparisions are potentially made about who the GOAT might have been, I feel Federer may cop a lot of flack for winning his titles against one slam wonders and young guys who eventually got the better of him.
The best player he has played against he defeated 2 times in GS finals to date, but that was when he was young and even then they were really tight matches (06 wimbledon two tie break sets). So:
Federer won 2 of his 13GS off Nadal, the best player around aside from him.
Nadal won (at least) 5 of his 6 titles from Federer, the best player around besides him and genuine contender for GOAT.
If the two end up with a similar number of GS titles in the future, I feel this fact may sway the jury in favour of Nadal being the GOAT.
Both players have won on 3 surfaces. The only way Fed can bridge the gap I think is to win FO, and hope Nadal never wins USO.
"If the two end up with a similar number of GS titles in the future, I feel this fact may sway the jury in favour of Nadal being the GOAT."
Nadal will not end up with a similar no. of GS titles to Fed.