>>43887783My most favorites are based on Pokemon I've actually used and grew fond of, while the other half-ish are ones that over the years my mom bought plushies of, only knowing that they were a Pokemon and nothing else, knowing it'd probably make me happy (like Frillish), so naturally those mons bring warm memories and I can't help liking them a lot too.
There's very few Pokemon I like based on design alone that I actually never used (Naganadel, for example).