>>50863283>Because Gen 3 has probably the most atrocious spread of wild Pokemon, ESPECIALLY in the later part of the game.DP takes the cake when it comes to terrible Dex and distribution and it's not even close. There's a reason why Flint uses Drifblim, Lopunny, and Steelix, Volkner uses Ambipom and Octillery, and Candice uses Medicham.
Despite only having Wingulls and Tentacools in the water (outside of fishing), Hoenn still has far more choices than DP. DP Sinnoh Dex is so bad that despite being based on a snowy region it has fewer Ice-type Pokemon prior to the Elite Four than tropical Hoenn. Hoenn has three (Walrein, Glalie, and Regice) while DP Sinnoh has only two (Weavile and Abomasnow).