Of course, I'm a Ranma addict (you need look no further than my Soun Tendo Shrine to figure that out). It's a perfect introductory anime, and the second Anime I watched (Robotech/Macross being the first and not counting Speed Racer).  The storyline is a little complicated ("Just a little, Sure,"-RGB), but the Martial Arts and strong Akane/Ranma interaction keeps the story moving, despite the sidetracks (which generally lead to greater Akane/Ranma interaction anyhow).
    I got started on Ranma 1/2 by reading borrowed Viz Graphic Novels from my good friend Adah.  A few months later I "Borrowed" a friend's copy, and 'magicly' a copy of the first 6 hours of Ranma 1/2 showed up in my VCR 8-).  I was hooked, and have since collected all the Eps until the Breaking Point and 5 Viz Graphic Novels.  I've also Otaku-inized my Fiancee, and half of her family.  The powers of Ranma are great indeed, I only hope that they are only use for good. 8-)
    While the animation style is nice, and I do love the look of Nerima, Whisper of the Heart and Ghost in the Shell have better character animation, IMHO.  The Characters develop over time (although not nearly fast enough for the fans 8-)) and you can watch traits delevlop.  Anothe intreating thing is that each ep seems like a piece of a humorous Anime RPG. (Come on, why do you think Ranma alway fails to find peace from his 'curse', the GM is keeping the charecter in line 8-)).  In fact the reason I started my TFOS campaign as Furinkan High Roleplaying was because I saw 12 straight hours of Ranma eps. 8-)
    This will probably be expanded  as time goes on.