GTO isnt much of a romance, but it has a lot to do with bullying and stuff i really like the characters
Lovely Complex very funny romance comedy
Ouran High School Host Club one of the best romantic comedies
Ranma 1/2 very funny
Inuyasha good adventure, humor, romantic comedy
peach girl though i thought it was cheesy
honey and clover
nodome cantabile- very musical and funny
NANA is a very "real life like" anime
NHK i heard was funny