>gen 1 is buggy as fuck and generally shouldn't really be considered since it's the very first by a team of noobs
>gen 2 has a bunch of cool features but the pacing/progression/level scaling is bad. Kanto is quite empty too
>gen 3 brings cool new features like abilities but loses a lot of gen 2 cool features like crafting or day/night cycles. Also, doesn't look very good
>gen 4 (dpp) has performance issues, bad type balancing, especially with fire types, too many babies and uninteresting pokemons
>gen 4 remake has the same problems as original
>gen 5 had the issue of the pokedex as well as being considered way too linear
>gen 6 pokemon models & animations are bland with no personnality
> gen 7 handholds you too much, has a shittier online than gen 5, unsurprising story
>gen 8 & 9 lmao