A friend and I are road tripping to Vegas in early January. We plan on taking about 2 1/2 days to get to Vegas and want to see some really amazing sites but are somewhat limited on time. I'm thinking I-10 to 93 or possible I-10 to 25 and go through Albuquerque then hit 40. Which route would be the safest for this time of year and most memorable? I sure appreciate all of your input.