To be honest, I don't necessarily pay attention to an anime because of its animation, I pay attention to it for the story. While I know that some are better than others, I don't really have a particular favorite. Sword Art, Fairy Tail (recent) and Naruto Shippuden all have good animation so I'll just post a few pictures of them. Maybe you guys could tell me about some anime that is known for its animation?
Oh and I forgot to mention Nisekoi and Fullmetal Alchemist Brotherhood.