Chobits. And you can't just quantify it as "pantsu." It's a very deep look at the culture surrounding computers (Not necessarily just the Internet and uber-geeks, but computers in a more popular scope), and the purity in symbolism of a new life, AI. It's overrun with t3h symbolism!
And pantsu.
Alright, that aside...I finished the game Magic Knight Rayearth over the weekend. I think I really did prefer the anime to it, though. It just had a better story, in the first season at least (Second season rather went downhill, in my opinion, but that was a different storyline altogether).