I have always requested main building and was lucky the first 3 times. Ended up in Building 4 last year and I actually liked it even more so will request this year. I always ask for low floor as scared of heights and thats never an issue as most people seem to want firework view.
It really is a great resort. I don't know why everyone doesn't stay there. Still can't believe people pay $400 to stay at the Poly in one room when they could stay at BC for less than a third and have a room 4 times bigger!