Gen 5 is the most balanced generation as every type gets some form of attention with no favoritism for one type or another. Gen 1, on the other hand is HORRIBLY unbalanced, as there are too many Water and Poison types. Both Gen 1 and Gen 3 also have a case of "Too much water"



Honestly I fail to understand why they're making a game with only Gen 1 Pokemon in it, considering it's the worst generation competitively: There's too many Water and Poison types with almost every Grass type being paired with Poison, there are no pure Ice types (and there wouldn't be any until Gen 3) and every Ice type except Jynx is paired with Water, there are no pure Rock types, there are no pure Ghost types and only a single evo line (which just happens to be paired with Poison), there's only a single Dragon type line, almost every Rock type is paired with Ground to the point where you wonder if the two were originally meant to be a single type, and the generation overall is just horribly unbalanced. As for types that were introduced in later generations (excluding Alolan forms), you only have a single Steel line and no Dark types whatsoever, Fairy types are fine though.



I mean seriously, Kanto has a higher ratio of Poison types to non-Poison types than an Australia region would probably have.