I have 3 types of favourites
1) “I like them in canon”: I enjoy what I get, I probably will rarely make or look for fanwork about them. I like what already exist. I’m probably gonna make some doodles for lulz, but not much
2) “Characters I like to torment”: Regardless of how I feel about them, I just like to make LOL-art putting them in silly costumes or poses. Or make absurdly angsty backstories for them. Sometimes both. Usually I end up putting out a decent amount of work.
3) “AM I THE ONLY PERSON WHO ACTUALLY LIKES THIS?”: When I feel like I’m the only person who likes the ship/character/fandom and I have to be the on making all the fanwork because I can’t find anyone else doing them.