Quoted By:
For me, it's Gen III
>supremely well-balanced without legendaries, and amongst legendaries themselves
>has more options for play than Gen I & Gen II: more held items, more moves, more Pokemon, more mechanics
>has double battles to add variety and an extra layer of strategy
>lack of physical/special split facilitated the balance GameFreak originally set out to make starting as early as Gen I
>lacks the bloat and imbalanced powercreep of later gens, like Stealth Rock, Scald, hidden abilities, megas, z-moves, dynamax, and generally overpowered Pokemon like Ultra Beasts
>is neither too basic nor bogged down with bullshit
To me, Gen III competitive was peak Pokemon. Gen IV is a close second but Stealth Rock ruined it.