No childrenish anime, no lolicon, no dominant yaoi/yuri, nothing with extreme gore, characters at least age 16-17+, and no old modeled/graphics - at least reasonable sound with visibly clear picture.
A mix of Action, Comedy, Ecchi, Romance, School, Shounen, and Harem. Doesn't have to be all of them, but at least three/four of the Genre's. Plus I added a list of anime to cut off from suggestions that were very close to these specs that I've already watched.
Rosario + Vampire
Infinite Stratos (IS)