I think by facility, the previous poster means faculty?
There are several reasons why I would choose Midwestern over UNLV, but UCF covered many of the basic points. Another thing against UNLV is that I heard during an interview at another school that they've been laying off faculty to offset their budget issues (faculty costs were explained to me as being the biggest expense of a dental school--makes sense). For one, this will decrease the faculty:student ratio, which has a large impact on the smoothness (or frustration) of your education. If they're having budget issues, though, there could be other consequences that you may not like down the road as well. With Midwestern, sure they're not immune to financial problems, but with being private and not state run, I would guess they have a lot more control over how they acquire/use their money and therefore would have less problems.
To add in a few other points:
I think the area around MWU is far better than UNLV. Then again, I'm hugely not a fan of the strip. I haven't checked home prices recently at UNLV since I've been focused on MWU, but you can get a decent home in Glendale/Surprise for 50-80k depending on your desires. That translates to a mortgage payment of 400-600ish/mo--cheaper than any rent you'll find for comparable amenities.