I have too many favorites but i'll try to keep the list short.
Slayers, Zenki, FLCL, Air, Toradora, Macross(All of them), Sousei no Aquarion, Tengen Toppa Gurren Lagann, Kill la Kill, Anohana, Madoka, Fate/Zero, Psycho Pass, Log Horizon, Akatsuki no Yona, Tiger & Bunny, Love Live!, Symphogear, Nanoha, Gundam Seed, To Aru Majutsu no Index, Fate/Kaleid Liner Prisma Illya, Gundam Unicorn, Sailor Moon, Star Driver(That show is so fabulous XD), Ore Twintail ni Narimasu, Patlabor and Samurai Flamenco.
I think that's all of them.