The north end of the complex has playgrounds for children, so it may not be very quiet during the day. But at night? who knows?
The main pools by 2700 and 2800 won't be very quiet.
The best bet would be buildings 2500 and 2600 which face the chollas garden. But they play shuffle board and bocce ball. Those aren't particularly noisy, but the people playing them may be at times. 2300 is probably the most quiet building, but it is dedicated to fixed 2 BR units. So, if your reservation is in a 2 BR L.O. or a smaller unit, they wouldn't put you in there.
I'd suggest trying to get a top floor so you don't have people above you.
But as far as I recall, I have never been bothered by noise. The units are pretty quiet. If you're hyper sensitive, consider a white noise machine.