If you liked the Clover (CLAMP) manga, the Anime-Planet community thinks you'd like:
Nineteen-year-old ronin Hideki Motosuwa desires two things more than anything else: a girlfriend, and an expensive humanoid computer (known as a 'persocom'). But with his dead-end job and no financial aid from his parents, owning a persocom seems impossible... until he finds a blond-haired female persocom tied up amongst a pile of trash! After getting her home and figuring out how to activate her, even the computer-illiterate Hideki realizes there is something unusual when it appears she can only say one word - Chii. Is she just broken, or is there more to this persocom than her behavior lets on?
CLAMP's manga are pretty distinctive, and Clover and Chobits are no exception. Both are soft sci-fi stories about naive young (or just young-looking) girls with some crazy mystery power that they can't control meeting and loving a man. As in all CLAMP series, the artwork in each is gorgeous, and major themes include the ever popular "love is blind" and "love will conquer all".