Here are the order of my favorites and why they are in the order:
Sinnoh- Sinnoh is my favorite because of the Pokemon, the cities and towns are amazing, and the history of it with Dialga, Palkia, Giratinia, and such (my favorite legendaries besides Ho-oh and Lugia.
Johto- Johto is my second favorite, because its awesome. I loved it even more after HG/SS came out. Lugia and Ho-oh are my second favorite group of legendaries.
Kanto- Kanto is third because I believe its gotten a little over used in the games. Its been in every generation so far (except V)
Hoenn- I just plain out dislike the Hoenn region. I didn't lik the actual region, most of the Pokemon, May and Max (from the anime) or anything.
I don't play the side games like Ranger and Mystery Dungeon, so I don't know anything about those regions. I don't like Orre because its just plain and you cant catch many Pokemon there. I liked playing Collesseum and XD though
My favorite region is Johto. Everything is amazing about it.. The mysteries as Eraleas said before, the story, Pokemon.. I love everything about it.
johto's my fave region.....i just don't know why.....
hoenn is my favorite because i love the battle fronteir and somtimes a contest
kant go to kanto. Hoenn ftw!
KANTO IS WAY BETTER THAN HOENN!!! FANBOY POWERS, ACTIVATE!!!
not very effctive! Hoeen is epic! It has put a spell on me devoting me to it! I much prefer th hoenn story lines to any othr!
I USE SUPER FANBOY AWESOMENESS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
missed hoenn still rules as number one region! Woo!