In my opinion:
Djokovic vs. Fish was pretty good, good three setter and fantastic play for Djokovic - good match.
Nadal vs. Davydenko was good also. The full match involves Nadal a bit off but with some good winners and Davydenko having a good day.
Nadal vs. Federer (MC) was with Nadal doing quite well, but the resolution of the full match is horrible and so I don't know too much.
Nadal vs. Federer (Hamburg) People like it and it looks good - I can't wait too see it.
Djokovic vs. Wawrinka is good stuff. Good rallies and fantastic play like all the others.
Nadal vs. Kiefer same as below
Murray vs. Djokovic I haven't seen but a few people like it. Should be good but personally I don't like Murray.
Murray vs. Simon - Same again!!!
Nalbandian vs. Tsonga - looks very exciting - it is your favourite and I'm yet too see that one too
Djokovic vs. Davydenko nothing like Djoker on fire on hardcourt