I have yet to stay at Caesars Palace so this would be the first thing I would want to check out. They recently renovated some areas here so definitely expect some new cool stuff when you arrive.
Resorts World is one of the newer resorts so everything you will see here is so modern and also so massive. In fact this is one of the largest pools on the Las Vegas strip.
The Cosmopolitan is such a nice hotel especially this large pool of theirs. It has one of the best strip views from the pool and you won't find it anywhere else. You can lie on the lounge chairs and enjoy.
This is one of the biggest pools you will ever see and it is not the only one in this property. On top of that it is open all year round and heated. We were there in January it was quite nice and warm.
It is such a nice garden themed pool. Everything is light green and the restaurant that's attached to it also follows the theme. Generally the main stays pool open all year round.