I went to Vegas 2 years ago, staying in The Aladdin hotel which was very nice. We went to watch the England Vs Turkey QF at an English pub in a huge Hummerzine, the game kicked off at 10am and it was 90 degrees, much better than The Walkabout im sure you'll agree. Vegas is brilliant and you will never experience anything like it, you wont find one single clock there as the place never sleeps. Go to the top of the Stratosphere hotel as the view is amazing, breathtaking views.
http://www.vegas.com/resorts/strato/stratosphere.jpgAccording to the old dears LA was a shit hole and they got warned about walking down Hollywood boulevard, which is where the stars have their hand prints on the walkway.