We have stayed at both and like them for different reasons. We typically choose pop for our Xtra days ( like if we re able to come in a day earlier than originally booked and unable to add on a day)
Regardless of the time spent mostly at a park, we greatly enjoy the amenities, atmosphere and xtras at upgraded resorts. The buses, food, pool, bar etc etc etc
For that money, I'd easily choose AKL in a heartbeat.
We actually just did ur exact plan few weeks back lol.. took our first nite at pop and then enjoyed our entire vacation at AKL (Jambo villa) I could not personally handle a week at pop or any value. But that's just us..
Enjoy, whichever u choose.