Meadows
As a scandinavian, it reminds me of swedish summers. Calm and nice and sunny. Plus plenty of deers and boars for easy food whilst working on my base/home.
I always set up my main base there and teleport when I need to get stuff and use ship back home for ores back etc...

I hate the swamp!
So dark and moist and annoying mobs, plus those abominations are annoying when you find one.

Oh, and whilst I'm waiting for mistlands, I set up a huge wolf 2 star farm in the Plains next to a large mistlands, currently have 20+ wolves.
They are going to join me later on all at once, once mistlands is here. will probably be 100 wolves or more in my farm before mistland comes heheh