I generally prefer manga to anime, but I still like both! If I don't like something or get bored, I drop it, but I'll rate it well if I thought it was good, even if I dropped it. I don't usually add shows that I only watched the first episode of (and then dropped) to my list, which is why most of my ratings are relatively high.
I like fantasy, particullarly ones with game elements(typical, I know), but I also like pretty much anything else that's good. I'm not very picky. I also like school lifes, whether they're comedy or otherwise, and my favorite manga/webtoon/whatever is either "Koe no Kitachi", "Happy Marriage", "Why Did Men Stop Wearing High Heels?", or "Beelzebub". My favorite anime is either "One-Punch Man", "Blood Lad", or "The Devil is a Part Timer".
I'm also currently trying to fill out recommendations for manga that don't have any, but it's taking a while. If you want to help, I've made a list of manga that need recommendations that you can take a look at. Also, if there's a manga you want to add to the list, let me know. If you want to narrow the list down a bit, I have several sublists of manga that need recs, namely romance specific, action specific, bl specific , and supernatural specific lists to make it easier.