Depends a little on what you like, and age of the kids.
POFQ has the best pool for very young kids, but it's not as mkuch fun probably for older kids. The resort is also a bit more compact overall- so that's a plus with little ones.
I have alsway sthought CSR has the best food. It was quite a while ago that I stayed at CBR. It has one of the best pools on property now- for kids that are old enough to appreciate it.
POR is my least favorite, but other folks seem to like it. The advantage of POR is the boat to DTD.You also can spend time at POFQ easily enough.
The disadvantge of POR is that the Boyou section does not have elevators. If you have a first floor room that won't matter. I find the pool and food court a bit boring. If you don't like to deviate from standard American foods, you may like it better.
At any of the large mods, taking a bus can be slow. The resorts are beautiful, but I kind of put a premium on getting around quickly. For that reason, we've tended towards the values and deluxes in recent years.