First, I was also accepted at both UHS & KCOM...obviously, I chose KCOM. There were many reasons for my decision.
1 - Safety: KC is a nice city, but the area where UHS is located is one of the highest crime areas of KC. Therefore, to be safe, you can not live near there -- necessitating a long commute.
2 - ALL of the students, faculty & staff I encountered at KCOM appeared to be legitimately in me as a person, not just as a payor of tuition. The observation panned out to be very true.
3 - The rotations system. Of all of the DO schools, KCOM is the most well organized, hands down. We match to a base hosp where most, if not all, of your third year clerkships take place. The fourth year, you can do all but 2 of your clerkships out...or, you can remain at your base hospital. You will hear many horror stories of students at other DO schools having to largely secure much, if not most of their own rotations in places potentially far-flung. If i correctly recall, very few of the UHS students are actually able to remain in KC for years 3 & 4...and UHS expects you to do a lot of arranging of your own clerkships. Believe me, years 3 & 4 give you more than enough to do without having to fret over where I am going next.
4 - Cost of living...unbelievably cheap in K'ville...coming from Dallas, I had a hard time believing the rents.
5 - No matter where you live in K'ville, your commute is essentiually ZERO (again, a by-product of life in Dallas)
6 - The relative isolation of K'ville not only leaves you less tempted to seek out distractions; but also causes you to forge bonds with your classmates -- something I will always treasure.
7 - All of the reasons Sweaty cites above
8 - Once you hit the clerkships, you realize that you are in deed VERY VERY well prepared.
All in all, when I was applying, KCOM was not my first choice, initially. Once I interviewed there...it quickly rose to the top of my list. Now, 1/2 way through year 3...I can unequivocally endorse the place and would select KCOM again.
Now, is the place perfect...hell no. If any school tells you that, run like hell as fast your little feet will carry you. However, KCOM offers you a lot of bang for the $ and, if you survive, will provide you with the opportunity to obtain an excellent education.