Attack on Titan recently, Gundam Wing, Inuyasha was aiight, GiTs, Code Geass, god I could do this for a while. I've enjoyed so many it's hard to place one so far above the others.
Xam'd: Lost Memories
Pet Girl of Sakurasou
HunterxHunter
Another
Monthly Girls' Nozaki-kun
I also loved Summer Wars, The Wind Rises, and The Wind Rises.
Katanagatari, I really loved this rare gem. A lot of people dislike the narration style, but I like how the story left no holes (except for a certain troll episode).