These lists do not contain all my anime/manga. I am merely too lazy to remember the names and add them to the lists.
To clarify my scoring, I see 10 as a masterpiece, 9 as really good but with some flaw or something missing, 8 is similar but with more flaws, 7 is a good watch if you don't have anything else to choose from, 6 is a decent watch but it is nothing I would enjoy myself, 5 is bad and definitely not something I would recommend. If you are hardpressed then sure, but only as a means to pass time with no actual expectation of enjoyment. 4 is bad, 3 is..well it is utter trash, 2 is painful trash to watch, and 1 is just awful in every way I can imagine.
My own preference when it comes to anime, manga, reading in general really, is a grimdark fiction with a male villain protagonist, no romance, asexual and aromantic lead, a world with magic and the protagonist himself being a mage. Of course, this would all be ideal but I am aware it is exceedingly rare, so I do read a lot of other things.
If you would ever like to chat, discuss anime, manga, light novels, so on, feel free to pm me :)