Hoenn lacked fire types but it certainly gave attention to it's own Pokemon rather than Kanto's most popular. Like for instance, Hoenn has Alakazam. Golem, and Machamp. But not Gengar so they could give their ghosts more spotlight like Sableye, Shuppet, and Duskull.
DP Pokedex sucked donkey balls because GF didn't put all the cross evolutions into the Pokedex for some reason. This made all the Elite Four rosters weak and lame. Flint had fucking Lopunny and Drifblim. None of the elite four teams made any sense. They chose to make the elite four lame by leaving most of the cross evos out of the Pokedex. They put the cross evos in the Platinum Pokedex but I got no idea why they were not in the DP pokedex.