I'd like to join, if I could! ^-^
Partner Pokemon: Treecko
Pokemon Nickname: Yew
Reason for joining: Hoenn is my favorite region, and a large part of that is probably because I really like a lot of the pokémon that inhabit it.
Current Topic Answer:
I don't know for sure. I guess I like the diversity of the Hoenn pokémon, yet they still appeal to me. Also, there are loads of pokémon that are suited to the different types of environments in Hoenn, which is probably the most interesting region geographically. The desert has pokémon like Trapinch and Cacnea, the tropical area has Tropius, the ash-filled route has Spinda, etc.
I'll also answer the favorites of each type, in case that's the current topic I'm supposed to answer: