We are planning to drive to Las Cruces mid October - Google and Mapquest gave us two very different options. We can go through Colorado via I-80 and I-25 then down to LC. Or, we can go through Kansas via Hwy 81 and US Hwy 54 or 56 on to LC. The drive time is about the same and mileage is pretty close too. The Colorado route is nearly all interstate, Kansas is a lot of 4 and 2 lane highways with some interstate. Any tips or ideas? Thanks.