A few observations:
Oh contrair Vigilanteman, Chicago O’Hara most definitely deserves its bad rap.
Back in the day (before 9/11) when I was flying round trip across country on a average of 5 to 6 times a year, I always ended up getting booked through O’Hara. And every time (regardless of the weather) my flight would end up getting delayed on average of 6 to 8 hours (if not outright cancelled). In addition, I have never had a connection through O’Hara airport without at least one piece of my luggage getting delayed or lost.
So, yes indeed. O’Hara deserves it bad rap. In fact, I would go as far as putting this sorry excuse for an airport at number 1 on this list.