britbox
Multiple Major Winner
The interesting thing about this argument, in a way, is how @Mastoor puts aside the Slams as the top measure and takes in a lot of factors with more equal weight. I will hijack this thread for just a moment to address Nadal v. Sampras, which a few have mentioned, and for obvious reasons. Particularly, @britbox, and I do appreciate your generosity in saying that I've nearly persuaded you. You definitely put "Majors Count" as top criterion. As do others here, based on general familiarity with their conversation. Therefore, how does career slam with 14 not trump 14 with never having been that close at RG? If weeks at #1, general dominance, or the WTF are more secondary, I don't think Pete takes the cake. There's a bit of fuzzy math in there, along with personal preferences and prejudices. (And likely a bit of nostalgia.) Pete was never great on clay and didn't win much on it (therefore no RG) and Rafa hasn't been great or won much on indoor hards (therefore no WTF.) But RG is more important than the YEC.
As to dominance, which I know a lot of you guys like, (who can pee on the most rose bushes,) just look at the list of Most Weeks at #1:
Rank Player Total
1. Roger Federer302
2. Pete Sampras 286
3. Ivan Lendl 270
4. Jimmy Connors 268
5. Novak Djokovic191 *
6. John McEnroe 170
7. Rafael Nadal141
8. Björn Borg 109
9. Andre Agassi 101
10. Lleyton Hewitt 80
11. Stefan Edberg 72
12. Jim Courier 58
13. Gustavo Kuerten 43
14. Ilie Năstase 40
15. Mats Wilander 20
16. Andy Roddick 13
17. Boris Becker 12
18. Marat Safin 9
19. John Newcombe 8
Juan Carlos Ferrero
21. Thomas Muster 6
Marcelo RÃos
Yevgeny Kafelnikov
24. Carlos Moyá 2
25. Patrick Rafter 1
You know that Rafa is sandwiched in between Roger and Nole, chronologically. And he had an injury time out that caused him to lose his #1. Being 7 on the list describes a certain amount of dominance, especially given the era (and even Mastoor in his OP speaks to the competition). Between Federer, Djokovic and Nadal they have 634 weeks at #1. That's over 12 years. Even Pete and Andre didn't always synch up in their best years. And note the precipitous drop-off between 10-15. Nadal is in rarified air on that list, with no one active below him. So he won't get passed there for a long time. Novak is still #1 with a bullet, but he's got more than a year and a half to go to pass Connors. This list won't change for some time.
I now return you to your regularly scheduled debate. But just remember, if it's not about the Majors, Novak, unfettered by competition, could have an argument against Federer even before he reaches 17. Choose your poison.
When comparing players from the current or recent eras, yes I do count majors as the biggest criteria... but that changes for other eras. Still, it's not the only criteria - far from it.
Rafa and Pete are tied at 14 and yes, Rafa has the career grand slam but Pete also spent twice as long at #1 and to me he always seemed a more dominant player among his peer group.