Okay, for a bit of a thing I like, it's time to talk about Kalos!
Now granted in spite of its issues I really do like X and Y as games a lot, but most of all I really like Kalos as a region. But while the region design is a bit linear there's one thing I really like about the layout of the routes you go through from the start and that's how the routes are aligned with the four seasons. Unova may have had the fun seasons mechanic where the season changes every month but Kalos has an interesting region layout in spite of how diverse it is because the routes in order really represent the four seasons from the first one you encounter down to the last.
You start from Vaniville, and from there Routes 1, 2, 3, 22, 4, 5, 6, and 7 are all based on the Spring season, with beautiful forests and gardens of flowers blooming, much like Spring.
Then from Coastal Kalos, you go into Route 8, 9, 10, 11, 12, and to an extent 13 as well as 14 which are all Summer. Many of these routes are either beach-like or very warm. Route 14 is the beginning of Mountain Kalos but it's a very stormy route, much akin to the storms of summer.
As we enter from Laverre City into Mountain Kalos, Routes 15 and 16 represent Autumn. You can see this with the falling leaves all around the routes and the overall autumn atmosphere we get from them.
Then from Route 17, and later into Snowbelle City, we get a more Winter-like climate, with it being snowing all the time in these spots.
And as we head into Route 21 and into Victory Road, it returns to Spring with the route having blooming flowers all round.
It's a nicely thought out layout where the routes as you progress throughout the game are based on the four seasons, and it's like the seasons are changing as you traverse on your journey throughout Kalos. As you begin your journey, it's spring, then it transitions to summer, then later to autumn, and then winter. And then as you approach Victory Road and head onto become Champion, it's spring once again, coming full circle at the end of your journey, further reinforced upon it being spring around Vaniville, which is where you will return once more after successfully becoming Champion.
Kalos is a really beautiful region imo in the first place, but I respect the little detail put into the routes being representative of the seasons, almost as if the four seasons come and go along your journey: you start in the Spring, go through Summer, Autumn, and Winter, then as your journey ends it becomes Spring once more.
It's a little thing I really like about Kalos, honestly.
(that said this does mean this region was the perfect place to put Deerling and Sawsbuck and all of their forms in despite Kalos not having the direct monthly seasons mechanic like Unova, but that's a discussion for another time).
