I interviewed and was accepted at both DMU and CCOM, and for me, I just got a better "feel" from DMU. So maybe you got a similar feeling from one of the 3 schools you're contemplating. I'd say try a little introspection, and I'm confident you'll come to the right conclusion.
That being said, unless you have relatives to live with, or are willing to stick it out in the dorms/apts. on campus (Personally, no one could convince me to live in either of those situations now that I'm 23 and have lived on my own in nice places for even cheaper than what they're asking), the cost of living for CCOM will be far greater than DMU (I can't say for KCUMB). Chicago and the greater area/suburbs are obscenely expensive. Thus, your 4 year debt will be significantly greater. Other than that, I really didn't have any other negatives for CCOM. It was a great school, that offers many advantages and you will undoubtedly receive a fine education there.
Just my opinions, and you're welcome a million and TWO times.