Huh, interesting link. Here are my comments on the stuff that I've seen from that list:
-Revolutionary Girl Utena: I watched some 20-odd episodes of this, then dropped it because... I don't know, I guess I just got bored of it. Weird, because it came highly recommended as one of the classics.
-Elfen Lied: I believe most people who watch anime regularly have seen at least the first episode of Elfen Lied (I think it's because of the highly attractive name). I personally got through the entire series (that being said, it was one of the first anime I had ever seen, and so was not quite used to the gore... yet). I should probably give it another try.
-Nadia-Secret of Blue Sea: AWESOME! I love this anime! It's a bit too long for our screenings (52 episodes, I think?), but anyone who gets the chance should watch this! Note that it does drag a bit towards the middle, but other than those few filler-ish episodes, this is an excellent show!
-Slayers: Has been mentioned in this thread, has been screened before; still, one of my absolute favourite animes.
I haven't seen that much Sci-fi/fantasy anime, have I? *goes to watch Trigun*
ChainsawMao wrote:Full Metal Panic Fumoffu [12 episodes]
YES! FUMOFFU! Best comedy I've ever seen! Where's my FMP season 4, damnit?!