with back 2 back wimbledon final appearance, it's hard to debate that.

It's also a proof that wimbledon has slowed the court speed. Wimbledon is
more like roland garos now.

Federer's stamina. He played very few 5 setters indeed. I only remember
the following ones:
2004 AO. lost to Fafin
2004 Miami. beat Nadal.
2005 Shanghai, Lost to Nalbandian.
2006 Rome, lost to Nadal.
2007 Wimbeldon, beat Nadal.

You can see it's not too shabby.

I think Federer's long match strength is among the top 5. with
Nadal and Canas being the top 2.