The 5 star rating is ONLY for Christmas Day 2012, when there no stress and no lines for anything. No waiting in line for TSA, just 90 seconds from checking my ID and boarding pass to the gate area, no crowd waiting to get into the bathroom... The TSA personnel were even smiling!
On any other day, terminal 1 of McCarran would probably be hell but I can say I enjoyed going through this airport at least once.