If you liked the Ladies Versus Butlers! anime, the Anime-Planet community thinks you'd like:
While the setting differs greatly, these are both ecchi harems set in a school environment, and that feature your typical dull male protagonist as he gets surrounded by beautiful suitors for no apparent reason.
These shows love to throw the fanservice at the viewer at any chance they get, with revealing outfits, plenty of forced "accidental perversion" scenes are in each, often at the most irritating of times. So a fan of ecchi and harems will likely enjoy each of these shows.
In a world where magic is a reality, the young Louise is at the bottom of her class. Dubbed "Zero" by her classmates at Tristein Academy (due to her zero success rate for magic), Louise (along with all first year students) was charged with summoning a familiar; and instead of a cute magical creature, the familiar arrived in the form of... Saito Hiraga, a normal Japanese boy who was abruptly teleported from his own world?! Can both Louise and Saito come to terms with their new and complicated "relationship" and (more importantly) help Saito find a way home?
I decided to recommend Zero no Tsukaima/Familar of Zero. I was actually a bit surprised it hadn't all ready been done. There is a lot of similarities between the main characters. Both girls are from nobility, both have a totally stuck up/self righteous attitude, and both more or less get stuck w/ these guys that a lot more real wolrd/laid back (and in both cases it drives the girls nuts)
So of course both are absolutely hilarious w/ some touching/romantic stuff thrown int too. Again, I was very surprised they hadn't been recommended before,
but now they have, if you've seen either one but not the other, trust me....you need to. NOW