I second Lake Mead RV Village! We were there last month and stayed in one of the lake view sites. Beautiful view, level concrete pad, reliable 50-amp power and water. Our only issue was that it was 110 degrees when we arrived and set up camp, but that isn't the campground's issue! There was a steady breeze off the lake which made things more bearable outside.
It is convenient to both Hoover Dam and Vegas itself. One caveat however, it is located within the Lake Mead National Recreation Area so you do have to have a pass or pay a fee to enter. We have an annual pass, so we were fine. I do believe they have day and week passes available if you don't have the NPS Pass. The pass does not cover camping fees, just entry to the whole Recreation Area.
We also stayed overnight at Sam's Town, our daughter and grandsons flew into Vegas to join us and it was close to the airport. It was surprisingly nice and very quiet given its location right off the Boulder Strip.
Below is a picture of us on the site at the RV Village, and in the panorama the Village is in the center of the photo near the lake. So as you can see, not a lot right around the campground.
We loved it there and would not hesitate to stay there again!
2014 Seneca 37TS
Toads: 2014 Ford Explorer Sport or 2013 Ford Focus ST