Being a local, I've come to love McCarran International Airport. Pickup/dropoff, parking, and even check in is relatively easy compared to most airports and, in certain places, trams take you to the area of your gate.
If you have a little time and a few bucks to spend on long-term parking, you can stop by and see the Aviation Museum in Terminal 1. It's small, but worth some time to gain some knowledge and respect for aviation.