Unova>Kanto>Sinnoh=Johto=Hoenn>Kalos>Alola
I never really realized how much I disliked Kalos and Alola compared to the other five. I knew I wasn't big fans of them because I only played through Y once and I had to force myself to finish Sun after dropping it for a few months, but never knew the disparity was this bad. In contrast, I just picked up White again a few days ago and I'm having a blast. It's reminding me why I love the games in the first place.
Eliminating the three rows mentioned by this anon
>>33649833 since he has a point, it becomes Unova(23)>Sinnoh(20)>Kanto=Hoenn(19)>Johto(17)>Kalos(14)>Alola(13)