Ok, it is an interesting reasoning. But by using the same reasoning Federer is better clay courter than Guga. 5 RG finals, 5 consecutive semis. 1 win. Losing only to clay goat.
I'm ok with this reasoning as long as it applies for all players.
How do you rate Hewitt or Roddick on grass vs Murray and DJokovic?
Federer and Kuerten are from different eras, that is the difference here.
Murray and Djokovic are the same age, are playing against the same rivals and under exactly the same conditions. It makes sense to compare their results.
I agree that top players don't try hard in the grass warm-up tournaments, just simply take them as getting in contact with the surface. So in this era really Wimbledon is the only big grass tournament that's left.
In Wimbledon:
Djokovic has 1 title, 3 SF and 1 QF.
Murray has 1 final, 3 SF and 1 QF.
OG on grass last year was quite a "big" tournament (at least "bigger" than Queens or Halle or Hertogenbosh...) so I would say resuts-wise are quite similar, but at the end, Djokovic has 1 GS title on grass and Murray 0 GS titles on grass.
These comparisons are not easy (even among players from the same era).
For example, Lendl and Wilander were from the same era, played against the same rivals under the same conditions. Who was better on grass?
The two big tournaments on grass were Wimbledon and the Australian Open.
Lendl had 3 GS finals on grass (2 at WB and 1 at the AO ) and 7 SF ( 5 at WB and 2 at the AO).
Wilander had 2 GS titles on grass (both at the AO ) and 1 other final (also at the AO ) and 3 QF (at WB ).
Lendl was more consistent on grass, but Wilander won 2 GS titles on grass.
Which one was better on grass? As with almost everything, you'll have different opinions here as well.
