I would have to vouch for Tampa Florida. Every time I go to the Trop when the Red Sox are in town it is probably half full with Red Sox fans, if not more. Actually, you can say the same thing about the Yankees too. They have a lot of Yankee fans that go out to the Trop. It seems like a lot of northerners flock to the south because of the weather. Although, personally, I think the weather is too hot here and I would much rather be back in the snow.