A legend, no doubt! I too am an avid fan of him. His style, body language, cute innocent look (don't get me wrong here) and more importantly his class, elegance and baseline techniques will always be cherished in time immemorial.
I don't think we really can compare Agassi with Sampras. They were completely different players. Baseline play, superb service return and placments were Agassi's assets while Sampras had a great service action (probably the best ever) and equally superb volleys. His backhand was a killer. If you play with Sampras, you don't want to let him open up with his backhand or else he will kill you!
Agassi won all the grand slams whereas Pete could not manage the French which I am sure will remain as a scar in his otherwise scintillating career. All in all, both were class players in their own rights.
Just like they say "Behind every successful man is a woman", Agassi's career marked a remarkable comeback after a sudden downfall, once he got Steffi Graf as a life partner.
Talking of tennis, I cannot forget the name of John McEnroe, one of the most controversial players in the court. Although I could not watch many of his games, the few that I did were worth remembrance. His infamous catchphrase "You cannot be serious!" directed to the refree in one of the wimbledon matches was quite comical and interesting. There was this another match where he literally bullied and knocked over the refree. The poor refree could not retaliate but had to listen to John's gibberish. "You are wearing a sun-glass Mr., how can you see the white line?". His response to the refree's over-rule. :). Interesting character he was. The swedish B'jorn Borg was his arch rival for many years.
Aww....I am feeling so nostalgic. Let me take a sip of coffee! :)