When we stay on site, we tend to stay at Pop,but we have stayed at POFQ a few times. we really love it there, but lately it seems priced a little too high for us. you really can't go wrong there as no building is far from the main building. There is only one bus stop, the bus to MK tends to be dedicated while the others may stop at the River side stops.
some of the corner rooms have two sets of windows which I think makes the room feel a little bigger and it certainly brightens things up a bit.
Thelace is always quiet (at least when we have been there). if you want to do something different, try and book a carriage ride at river side, you can also rent bikes from over there.
Anyway, I find the grounds very enjoyable to strol around at night, the many fountains and the river.
We just got back from riverside which was great, but we did stroll over to FQ more than a few times (the food court takes TIW) but since you are on the dining plan, I imagine that doesn't mean anything, but for us it meant a decent price for breakfast.