Anime you rated 9 or 10? (Recommendations)

Ive watched alot of anime. Are there any anime you rated 9 or 10 that I have missed? Im gonna make an effort to try at least one show you recommend Please only recommend shows that I have not watched. I prefer not to watch remakes or shows I have seen in another format or subsequent seasons of shows that I have rated poorly. It would be helpful if you shared why you rated it 9/10. Hopefully this can help other users in their search for quality anime.