still cant beat puerto rico, you are in the US and you dont pay tax!
That's what it ultimately is going to be right? How friendly is the tax law going to be? But any crypto business unless it deals directly with clients, could technically operate anywhere in the world, as long as their home base transactions occur in the location where tax is most favorable.
I guess if you're American that's a big plus if it's not too far away, but for me it would be too much travel distance.