Although POFQ is the one we have never stayed at (only toured), I think for the age your children are it would be the perfect place. The pool area is really cute for the preschool set, close to the food court and I believe the whirlpool is right there. Smaller and quieter hotel that I think is geared nicely for adults only or families with small children. You have the boat to DTD from there and you can share all the amenities at POR & that is a big plus. And I believe it has recently just been renovated.
CSR is one of our favorites, great pool, child's pool is right there and not hidden away, lots of seating, huge whirlpool, food bar is right there and a great open playground for the kids. SW/Tropical feel to me with some beach area. This would be a second choice with your age. It is larger and the lobby/restaurants are around the lake, but certainly not the hiking we had to do at CBR.