Sinnoh. Because it's a good mix by nature and citizen. Not much nature like Hoenn and much newlike city with technoligies like Unova.
Fits perfect for me.
Pokemon.
1. Infernape
2. Roserade
3. Dusknoir
4. Staraptor
5. Luxray
6. Floatzel
Honorable mentions: Mamoswine, Electrive, Mismagius, Froslass, Honchcrow, Sudowoodo, Spiritomb, Togekiss. A lot of pokemon in sinnoh actually ._.