This is hands down one of my favorite anime/manga of all time. Other than my introduction through Gall Force and the occasional Sci-Fi Channel Saturday night movies, this was the first non-DBZ/Pokemon/Sailor Moon anime when I was younger, and I fell in love. I always loved the balance of comedy and martial arts, with a hidden romance plot becoming increasingly present as the series progresses.
Ranma 1/2 is a pinnacle for me. And I love Rumiko Takahashi(even if Inuyasha is very bleh).