well if they were the same age, then Nadal wins all the French Opens that he won and Federer wins a bit fewer Wim and US and Oz compared to what he actually did and Djokovic a bit more. Interestingly, I think Nadal might win fewer off clay as I think Fed and Djoko would stop him say maybe 1 less. So Nadal, something like 13, Federer say 14 or 15 and Djokovic 10 or 11 and probably Murray still something like 2 (if he was also included). But that total is still Fed at 32 and the others at 27 or 28. So when they're all say 27 or 28 I'd have it as:
Nadal 12
Fed 12
Djokovic 10
Murray 2
Would have been an amazing era. But of course we'll never know.
This is the only point I have been trying to make this whole topic!
Bare with me as I do an analysis here, I actually think if the big 4 were all the same age throughout you might see Fed/Nadal have only slightly lower #s, but Murray/Nole #s actually go up.
If all played in the same age range Fed #s go down sharply in that era, Nadal's
#s go down slightly, and Nole's #s would actually go up, not down as Mayo keeps saying!
This is because young Fed would not stop young Nole on HC the way prime Fed stopped young Nole constantly, therby increasing his early career HC slam career #s. Prime vs Prime Fed dominates Wimby but not unbeatable, Nole dominates AO but not unbeatable, Nadal dominates FO, unbeatable (except 1 injury loss to Fed, fair to project), and USO Fed wins the most, but there is a nice distribution for others.
Fed still finishes above Nole in the totals because he would about equally dominate Wimby as Nole AO, but do better at USO, but would see most of his total #s dip across the board because he would lose a few Wimbys, some USO, and most AOs.
Nadal's #s go down slightly, but his FO # doesn't change and he doesn't have too much in the other slams to lose.
Nole's Oz/USO #s go up, and he doesn't have much to lose in FO/Wimb.
I think 12-12-10-2 sounds about right if we take all 4 starting at age 19-28 from 2002-2011 (so Fed 2 years younger, Murray/Nole 4 years older, Nadal 3 years older)all other competitors ages being equal. That amounts to 36/40 slams, toss off 4 slams to others:
Australian Open - Nole (6), Fed (1), Nadal (1), Agassi (1 - 03), Safin (1 - 05)
French Open - Nadal (9), Fed (1)
Wimbledon - Fed (6), Nadal (1), Nole (1), Murray (1), Hewitt (1 - 02)
US Open - Fed (4), Nole (3), Nadal (1), Murray (1), Random Winner (1)
Totals:
Hewitt - 1 Wimb
Agassi - 1 AO
Safin - 1 AO
Fed - 1 AO, 1 FO, 6 Wimb, 4 USO = 12
Nadal - 1 AO, 9 FO, 1 Wimb, 1 USO = 12
Nole - 6 AO, 1 Wimb, 3 USO = 10
Murray - 1 USO, 1 Wimb = 2
One Slam USO wonder - 1 USO
Now where it gets interesting though is, we would have to consider the
reverse as well, post-2011 when all hit 28. We know what Fed's form was post-28 seen the last few years (2010-2014). If there is no prime Murray/Nole/Nadal around from 2010-2014 (as we assume equivalent competition) then Fed's slam #s in THIS era would go up, just as Nole's 07-14 form placed in 02-11 #s would.
Fed in 2010/2011 USO was stopped by Nole
Fed won 2010 AO and was stopped by Nole in 2011, Murray in 2013, and Nadal in 2012/2014
Fed was stopped by Nadal in FO 11 and Nole in FO 12
Fed was won Wimby 12 and was stopped by Nole in Wimb 14
Thats a potential for 9 more slams all stopped by prime Big 4 in the SF/F in the hypothetical 2012-2016 era, if we put the big 4 at all 19 in 02.
We don't know what Murray post-28 will look like, and we are having a suspicion post-28 Nadal will look far worse than post-28 Fed. Nole, however, does look like he will still be going strong post-28, but it remains to be see how much compared to Fed. It also depends on the new generation in 15/16.
So that 12-12-10-2 estimate would be a floor that could be augmented (and certainly would be for Fed).
Ergo Fed would still be GOAT, but chances are good Nole's #s would rival Nadal at least. Perhaps when it came down to it in the end Fed/Nadal #s would actually only diminish slightly, while Murray's might improve slightly
and Nole's shoot up a considerable amount to the point where he is actually on Nadal's level with a closer gap to Fed.
Note: This should also tell you, why I feel Fed is GOAT (of open era). If you placed him in the absolute peak era ever with prime Big 4 as the top tier players (replacing Hewitt/Safin/Roddick/Agassi) and those 4 as the
second tier players (replacing Tsonga/Berdych/Ferrer/Del Po/Wawrinka), I STILL say he wins a MINIMUM of 12 career Slams.
Bottom line is none of this matters in the scheme of where players will be ranked, as it stands Fed is GOAT, Nadal tier 1, and Nole tier 2 and Nole needs to win more to move up.
But I just want you to acknowledge Nole has it tougher than Fed did during his prime. Fed's legacy is secure and he is the better player, but beating Gonzales, Philippouses, 35 year old Agassi, Roddick, Safin, and Hewitt for 80% of his slam wins doesn't measure up in difficulty to Nole having to beat prime Nadal and prime Murray for 80% of his slam wins.