Quoted By:
Kanto = Minimalism
Johto = Man-made / Nostalgia
Hoenn = Summer aesthetic
Sinnoh = Mountains and winter aesthetic
Unova = Urban
Kalos = Nature
Alola = Hawaii wannabe
Galar = Europe
Depends on your tastes, I guess. Everyone will root for one in particular, but you might as well ask them what is the best color.