KingKymco125,
You just had to mention St. George didn't you? Zion Nat'l Park is one of my favorite places in the world. I was there 3 years ago and can't wait to go back. My wife spent a week in Las Vegas, and didn't spend more than a few hours in town...went to Red Rock, Zion, and the Grand Canyon and just used Vegas as a central area to base out of. Loved the weather in Vegas, but loved the scenery outside of Vegas more!!