>>56785285johto pokemon swing wildly between the two extremes of "complete shit" and "borderline broken" the shit gets more attention because most of the really good ones are evos for gen 1 pokemon, and half of them are trade evos.
meanwhile hoenn is just a heap of bad and worse, but there's more to pick from so you have a better chance at finding something that kind of works.
sinnoh would be in a similar boat to johto except they frontload a bunch of good shit right at the start of the game. the sinnoh meme team is a thing because everything that comes later is either a pain in the ass to get or it just sucks. or both, if it's the honey mons.
