It is a great idea, but people will give different opinions on the fit of the same shoe.
I'll try to get things started with my opinions, feel free to post your different opinions and we'll try to reach a consensus for the fit of eachshoe...
Air Jordan I - Big
Air Jordan II - ?
Air Jordan III - True
Air Jordan IV - Small
Air Jordan V - Small
Air Jordan VI - ?
Air Jordan VII - True
Air Jordan VIII - Big
Air Jordan IX - Small
Air Jordan X - Small
Air Jordan XI - True
Air Jordan XII - Big
Air Jordan XIII - True
Air Jordan XIV - Small
Air Jordan XV - Big
Air Jordan XVI - True
Air Jordan XVII - Big
Air Jordan XVIII - True
Air Jordan XIX - True
Air Jordan XX - True
Air Jordan XXI - ?
Air Jordan XX2 - Big
Air Jordan XX3 - ?
And yes, I've played in all of the Air Jordan's I listed.