Scandinavia holds my vote. Mythology is plentiful, probably get a ton of good ice/water/dragon types (what with vikings and such), and Iceland supplies the requisite volcano for all the fire types. --- When life's really getting you down, take solace in the fact that you're going to die.
Europe would be boring. Europeans literally hunted all their native large predators to the point of extinction (lions, wolves etc)
Of course Europe is a little dull.
But it's universal. Outside of China which won't happen because GF is Japanese, there are only a couple half dozen or so locations left that would fit.
Egypt UK Germany Greece Italy Spain/Portugal Austrailia India California Brazil
Those last three are incredibly generous. Germany and Spain only carry relative interest because of location. Greece and Italy aren't amazing choices right now because of politics.
I could see a return to Kanto, but the United Kingdom may be the last viable vestige of a major area short of ALL of Africa (or at least Some of and south of the Sahra) --- Thinking is overrated. Like Pants.
Australia for drop bears, cassowaries, white-winged choughs or Koel, storks or cranes, and these guys: http://thumbs.dreamstime.com/z/angry-emu-5802559.jpg --- Nostalgia makes the heart feeble. It is the heart's...nemesis."-Trema, FFX-2