You're conquering the Pokémon world. Where do you start?

No, that's unknow region

Johto seems rather easy and the legendaries aren’t out of control demigods like some of the other regions and the evil team or top trainers aren’t that strong, while Paldea also seems rather easy I can’t stand the heat

I'm already Arceus, so the people of Sinnoh are practically required to accept me as their ruler.

I think either Paldea or Johto. Johto hasn't got a lot of diverse pokemon, but Paldea isnt really known for being the strongest. I think we start in Mezagoza, then make our way into the mountains