So nice to see Sampras looking healthy and well at Wimbledon - and even nicer to hear his gracious words for Federer. One of the most unlikeable aspects of Sampras' personality when he was playing was that he seldom ever gave praise to his opponents. This seems to have toned down since he retired - so much so that I think it's a valid criticism that he gave too much praise to Federer this time.
Laver was interviewed after Federer's win and he said that while Federer was great, he would probably give Sampras the edge over Federer on grass. I would have to agree with that. Whilst I think Federer is the better player overall, Sampras IMO will always be the better grass-courter. Sampras had to play on actual fast grass, not the joke stuff they have laid down nowadays, and against worthy grasscourt-specialist opponents. Federer has it much easier.
No player has ever come close to replicating the relentless machine Sampras was on grass. Sampras - the best grasscourter now, then, and most likely forever.