Losses by non-Big 3 in GS:
2008: 3 (Djokovic vs Safin, Nadal vs Murray/Tsonga)
2011: 2 (Federer vs Tsonga, Nadal vs Ferrer)
2012: 3 (Federer vs Berdych, Djokovic vs Murray, Nadal vs Rosol)*
*Nadal didn't play USO
Losses by non-Big 3 in Masters:
2008:
6 Federer (Stepanek, Karlovic, Roddick, Murray, Simon, Fish)
4 Nadal (Davydenko x2, Ferrero Simon)
5 Djokovic (Murray x2, Karlovic, Tsonga, Anderson)
Total: 15 (On combined 27 Masters, 0.55 per tournament)
2011:
4 Federer (Tsonga, Berdych, Gasquet, Melzer)
3 Nadal (Fish, Mayer, Dodig)
1 Djokovic (Murray)
Total: 8 (On combined 23 Masters, 0.35 per tournament)
2012:
2 Federer (Murray, Roddick)
1 Nadal (Verdasco)
3 Djokovic (Tipsarevic, Querrey, Isner)
Total: 6 (On combine 20 Masters, 0.3 per tournament)
World Tour Finals:
2008:
Federer RR: 1/3
Nadal DNP
Djokovic W: 4/5
Total: 5/8 - 62,5%
2011:
Federer W: 5/5
Nadal RR: 1/3
Djokovic RR: 1/3
Total: 7/11 - 63,6%
2012:
Federer F: 3/5
Nadal DNP
Djokovic W: 5/5
Total 8/10 - 80,0%
ATP Points:
2008(Comp): 10.079(Federer) + 12.682(Nadal) + 10.060(Djokovic) = 32.821
2011: 8.170(Federer) + 9.595(Nadal) + 13.630(Djokovic) = 31.395
2012: 10.265(Federer) + 6.690(Nadal) + 12.920(Djokovic) = 29.875
Win %:
2008: 81,5% Federer, 88,2% Nadal, 79,0% Djokovic. COMBINED 83,1%
2011: 84,2% Federer, 82,1% Nadal, 92,1% Djokovic. COMBINED 86,0%
2012: 85,5% Federer, 87,5% Nadal, 86,2% Djokovic. COMBINED 86,2%
Conclusion:
2012 vs 2011. 2011 They were better in slams, but 2012 they were better outside them.
2008 is clearly behind. It has only ATP pounts combined, but probably x1.9 compensation is generous.