Kalos
Pokemon X/Y was when the series went genuinely 3D, and I remember it feeling both inevitable and slightly off. Kalos, based on France, had this cleaner aesthetic than previous regions—less wild, more designed. Walking through Lumiose City actually felt like being somewhere, which was new.
The starters did nothing for me. Fennekin’s evolution into Delphox is still weird in my brain, a choice I can’t quite forgive. But the 3D shift worked. After fifteen years of grid-based movement and flat sprites, the games suddenly looked like the elaborate world they’d always been describing. It wasn’t revolutionary, and the battles played out the same as ever, but there was something satisfying about the technology finally catching up to the ambition.
I’m not sure I’d call it a favorite, exactly. But it marked something—the moment Pokemon stopped trying to recreate what worked on Game Boy hardware and just became what the franchise probably always wanted to be.