Re: Bigger gap on clay- Serena vs Henin or Federer vs Nadal
Justine was still 4 years away from her prime when Serena nearly beat her in 2003. It was right in the middle of Serena's prime though (and she still couldn't beat her).
In any case, the OP made clear on about page 2 of this thread that the thread was about which gap in accomplishments was bigger, Serena-Henin or Rafa-Roger, rather than it being about the match-ups specifically.
2003 was Justine's 2nd best year, and before the mono and illness she went through, even during her prime in 2007.
And, you can't compare the ATP to the WTA, otherwise we would say Court or Graf or Navratilova are greater than Federer. Hell, we could say that Serena is almost greater than Roger, statistically speaking, especially with winning 4 slams in a row, something Roger hasn't done. So, the OP was completely off the mark if they are trying to compare gap in accomplishments which you can never do when comparing the WTA and ATP.