Bike Rental Choices

So we're thinking about a week in Las Vegas and maybe bringing my gear and getting a couple days off road in. The trail tour / rental places seem to generally have the same choices of rental bikes but I need some feedback on what would be best for that area. I know little to nothing about KTM's nor have I ever ridden one and the websites aren't clear as to the year of any of the bikes. So, of the choices below, what do you think would be my best choice considering I'm 43, 190lbs and been riding for 33 years though only only recently getting back into the dirt. I'm leaning towards one of the KTM's........... The CRF450X looks fun and is "specially prepped" but's it's an expensive package.

Choices:

Honda CRF 230
Kawasaki KLR 400
KTM EXC 525
KTM MXC 450
Suzuki DRZ 400
KTM EXC 450
CRF450X ($$$)

KTM EXC would be my choice, the 450x would work as well, but not if it costs a lot more.