ORD vs. Midway
AS a pilot, you can request the runway you want at midway...ATC will tell you there will be a DELAY...this is their tactic to make you move things along THEIR WAY.
But put your foot down and instead of a 30 minute delay like they tell you, it will only be a couple of minutes...trust me, give it a try! but don't waver and have some fuel!!!
you might end up shooting an ILS 31 center and break off to make a VFR pattern to another runway...you might actually have to fly a traffic pattern!!!