Quoted By:
I would argue ORAS does just because it seems to have a few more dive spots. But then again Emerald has Team Magma's HQ. Regardless, it's safe to say Hoenn is the best designed region, and only fanboys would disagree. Not only does it emphasize exploration and gives the player the option to skip certain gyms, but it managed to do so without breaking it's level curve.
Regions like Unova and Alola were linear like a straw, but Johto's biggest flaw is it's retarded level spike. Kanto is the only region that is like Hoenn in this regard, but Kanto was just grasslands and caves.