Well, since the third placed airport is so far behind I will put in my few words on these airports. I have been to both of them many times and I do fly Delta 9 out of 10 times, therefore ATL is most of the time an automatic (unless I have to go through CVG). I find my time @ ATL more hectic and not as eventful as in ORD; less exciting flying objects to look @. It is to no surprise that ATL has reached the # 1 spot, but I rather see ORD keeping the #1 slot. It is a more fascinating airport to fly into, especially as a private pilot, than ATL and that is my opinion. By the way, might as well see as much as possible of ORD, because there is only one way to heaven and that is through..., yes you guessed it,... Atlanta. (little joke on the side for all you Delta fans).