Ok so here are my two cents.
1) Don't underestimate the importance of your wife's needs. Seriously, an MBA is demanding and if your wife has strong preferences for AA or Chicago, you should take heed. Both are reasonably large cities (though Chicago obviously quite a bit more) so both should be manageable in terms of her perspective, but its something to consider. This is particularly the case if you expect that she'll be looking for work -- either during your 2 years or thereafter -- being a big city is a big big help. I recall that when I was considering Cornell (admittedly much smaller than AA) I put out some feelers much of what I got back was that my wife could expect to be a secretary and little more for 2 years. Your options are less extreme than Ithaca vs Chicago -- but something to keep in mind.
2) This business about having a scholarship is nice -- but honestly, it isn't going to get you a job. MC interviews at 80% about the case - 20% about cultural fit. Not much weight is put on your academics (and even then it seems to be more GMAT than anything else)
3) Finally, I'd bring up the "What if" question. When I was trying to pick my internship and struggling a bit I asked myself the question "Might I look back on this and ask what if?" In my case, the answer was clear -- the opportunity to do VC was a once in a lifetime chance for me (or at least, the only plausible chance I'd have over the next many many years) and I realized that I'd rather gamble a bit more and not risk looking back wondering "What if?". If you'd feel that way about either school, you should listen to that voice.
Needless to say, if you can attend either admit weekend, you should. I know its a distance for you, but its a very big decision and the $2,000 or so it will cost you to do it is worth a million if it helps you make the right decision.