I've watched tons of anime. But some of the best are, in my opinion, are Gundam 00, Blue Gender, Death Note (and its live action movie, the japanese one, its amazing), Samurai X (the live actions are AMAZING. You will not regret it), Anything by Hayao Miyazaki, Nauusica and the valley of the wind stands out. Garden of words has some of the best hand-drawn realistic-ish animations I've seen. And Redline, which was entirely hand-drawn is one of the most out there visually stunning pieces I've seen.