Best/Worst regions
IMO, i think its something like this
1 - Sinnoh
I loved how Mt. cornet goes through the whole region and that you go back to older towns to go to there gyms (hearthome)
2 - Hoenn
Some people might disagree but I love the water routes. They give a real purpose to surf. It also has the coolest "Ghost tower" (Mt. Pyre)
3 - Kanto
A very basic region, as it was in a basic game. I like the + sign in the middle of it
-------Cerulean---------
Celedon Saffron Lavender
-------Vermilion---------
4 - Johto
Not much that unique about this region and its missing some things like a "Ghost tower" and a safari zone mostly because there already in kanto. Way to linear to.
5 - Unova
It has the worst map system and way to linear. And you hardly use surf except for 2 areas.