I love Caesars Palace. Just my opinion, but I think they have the best general common areas. The casino is huge and they have plenty of interesting and fun shops.
It took my friends and I couple hours roamed around the Caesars. I think the only downside is that they are not connected to any other hotels and after walking so much, it will be nice to be able to just hop from the Caesars to another hotel.
P.S: Wear your most comfortable shoes. Your feet will thank you.