Favourite Genres: Fantasy (including dark), Comedy, Music, Action, Romance, Hentai
Least Favourite Genres: Anime in which nothing happens, 2000 episode shows with tons of filler, confusing shows
How I rate:
10 - You must watch it. Only one anime so far has managed to obtain this title.
9 - One of my favourite anime. Extremely enjoyable, and technically great as well. You should definitely watch it.
8 - An anime I enjoy a lot.
7 - An anime I enjoyed. Has some kind of flaw (animation, story, art, music) that reduces it from an 8.
6 - Mediocre at best. Unless you're a huge fan of the series, don't watch it.
5 - Bad. Don't watch this, you'll regret it. Has tons of flaws.
4-1 - Just don't bother unless you're MAL badge hunting.
Sometimes I add hentai to my list. Hentai is bound by the same rating rules, although note that I rate it compared to other hentai, not other anime (as it's very rare a hentai OVA will have the same animation quality and budget as a TV show).
I try not to drop anime, and I usually watch fillers yes. My goal is to watch all the anime I want to watch.