What is your favorite world size?

I like medium the most too. Large have too much space, it feels like more than a half of a world gonna be wasted. I like large worlds made by others, but I prefer building my own worlds on medium map. I just couldn't finish such a big project. It's hard to make large world without empty spaces on water or on land.

Small and tiny worlds can be pretty charming, but not enough space in them. It seems to me, that medium worlds are compromise - while not much space gonna stay unused/empty, they can be still charming.