It's funny - Both of us have watched a lot of Summer 2013 shows, but I think there's no overlap at all between us yet.
I've watched the first episode of the Rozen Maiden remake, Gen'ei o Kakeru Taiyo -Il sole penetra le illusioni, Fantasista Doll, Kiniro Mosaic, Love Lab, KKK, and Free!
Out of all of those, I'd think you'd like Love Lab and Gen'ei o Kakeru Taiyo -Il sole penetra le illusioni the most, although I'm not sure if you were much into the original Rozen Maiden or not.
And yeah, Love Live! almost seems tailor-made for me. There's very little I'd change about it if I could. It's a great show for a moe/yuri/drama-lover like myself.