I've only seen part of the first series of Ranma, but I liked it a lot, actually. Despite it being old, and thus having a lot of cliches (cliches that it may have originated), it still managed to be really entertaining, probably because it didn't feel as manufactured as so much animu from the past 10 years or so. I would say my enjoyment of it was similar to Slayers, which is also cliched by todays standards, but still a ton of fun.
Also, I just got my sexy jutsu to level 2, and now when I do it, there are THREE sexy Narutos, so he is doing the harem thing.