Looks like McCarran has a new terminal, which is Terminal 3. I like this Terminal - wide open spaces, high ceilings, lots of natural lighting. Also, brightly light signage so it's easy to navigate. I guess I'll be flying in and out of this Terminal a lot.
One thing that I don't like is the lack of a TSA PreCheck Screening area, and airports which are not experienced with TSA PreCheck are often somewhat confused as to what to do with those who are a part of the PreCheck Program in my experience thus far.