If/When I get the game. I'll pick Rowlett.

I ordered a Switch and the game on the same day, the game gets in today but the Switch arrives tomorrow, I currently do not have a Switch.

That said, I'm thinking of going with Cyndquill as my Starter.

Also, I heard you get some bonus material for having Let's Go, Brilliant Diamond/Shining Pearl, Sword/Shield save data on your system/account

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You get two Pokémon for free and some clothes if you have those two games.