Fuuka - Music, Heavy Romance
Golden Time - Great plot, cool concept
IS: Infinite Stratos - Funny, Romance is meh, Good animation, HEAVY harem
Koi to Senkyo to Chocolate - Political, Romance is good, Satisfying ending
Masamune-kun no Revenge - Great Romance, Funny AF, Amazing animation, Alright characters
Mayo Chiki! - Funny, MC is pretty shit, Great romance
Rec - SUPER short, Nice simple romance
Sakurasou no Pet na Kanojo - Amazing visuals and characters, Heavy drama
Oreshura - One of my personal favs, Different Concept, Amazing Characters, Great animation
list goes on lol