We are a family of 5 and have stayed at Pop Century for the past 5 years.
Initially we were all able to fit into one room (when the youngest was under 3), but the past 4 years we have opted for 2 connecting rooms at Pop.
The family suite was an option, but I think if you look at the $, it can be cheaper to get 2 connecting rooms. We get 4 beds and 2 bathrooms. We usually put the teenagers in the other room and keep the youngest with us.
Lots of space for everyone, and when it gets too noisy, you can shut the door. I would highly recommend 2 connecting rooms. I wouldnt want it any other way.