I would suggest asking the school to put you in contact with current students to ask how they liked the format and if they had any issues. There is an OSU-COM student that has posted over in the MBA forum but I haven't seen him around much. If you search and send him a PM maybe he might answer some of your questions.
I know nothing of KCUMB's program so I can't speak for it. While its great that its 4 yrs, the only thing that concerns me is if the curriculum is watered down because of it. Distance learning is great but for MBA's usually more programs go towards a more interactive, thinking out of the box learning, group environments to stimulate thinking and working in teams. How much of that can be done in distance learning?
With that said, I have seen on their website they advertise quite a few students go into the program but since none of them have done a conventional MBA program they wouldn't be able to compare the programs.

with your decision.