Hewitt and Roddick was #1 right?
The timing of Federer's rise and fall of Hewitt, Roddick and Nalbandian coincides with surface changes.
It must have been beneficial for Federer.
still all these wrong facts and beliefs I see.
Let see if some facts and reality observations can change your mind.
Hewitt had a bad year in 2003 - nothing to do with surfaces. (was knocked out at wimbledon as #1 seed by Karlovic)
He ended 2003 ranked #17.
https://en.wikipedia.org/wiki/Lleyton_Hewitt_career_statistics
Roddick barely beat Federer for #1 ranking in 2003.
If he had not reached the semi in the Year Ending Championships, he'd have been #2.
Federer just raised his level tremendously in 2004 ( it started from the Year Ending Championships in 2003 actually)
Before 2004, Federer-Roddick had played 4 matches :
basel 2002 (fast) -- federer won in straight sets
wimbledon 03(fast) -- federer won in straight sets
canada 03(medium fast) -- roddick won in 3 sets
YEC 2003 (in b/w medium fast and fast) -- federer won in straight sets
so speed had nothing much to do with h2h in that case, in fact the only match roddick won was on the slowest surface of the 4.
......
as far as Nalbandian is concerned, he played federer tough on both fast and slow surfaces :
AO 03 (slow-medium) - nalby won in 5 sets
cincy 03 (fast) - nalby won in 2 TBs
USO 03 (medium fast to fast) - nalby won in 4 sets
AO 04 (slow-medium) - federer won in a competitive 4-setter
USO 05 (medium fast to fast) -- federer beat him convincingly in straight sets
rome 06 (slow) -- tight 3-set match that federer won
RG 06 (slow) -- nalbandian retired when down 5-2 in the 3rd set (1 set all) - match was competitive
madrid 06 (medium fast to fast) - federer beat nalby in straight sets, with a bagel in the 2nd set
madrid 07 (medium fast to fast) - nalby beat federer in 3 sets
paris 07 (medium) - nalby beat federer in 2 close sets
monte carlo 08 (slow) -- federer beat nalby in 3 sets
basel 08 (fast) - federer beat him in straight sets
there isn't much of a difference in their matches by speed.
only place where its non-competitive is grass ( where federer beats him easily -- did so in wim 11 )
nalbandian could play well on all of slow HC, fast outdoor HC , clay and indoors.