Wooooo - I love this thread!!!
I've been to Disney World once (May 2011), and as we were a family of 6, we needed the family room. We stayed in 9558 Jazz Inn and LOVED it. I love the theming of the resort, I love how fun it is without being over the top.
We were on the first floor and the noise wasn't something we noticed at all. It was quick enough to get to the shop, food hall and bus stops. When the beds are folded out it is a bit of a squeeze, but it's not a problem. Having the two bathroom/showers/baths is excellent when you have a few children!
Yes it's a bit basic, but I'm fine with that. We spent most of our time in the parks anyway. My children really wanted to play in the pool more and watch movies in the evening, but I wanted fireworks!
So actually there was plenty at ASMu for them, they just didn't get the chance to do it.
We never found the buses to be an issue. Sometimes it was shared with the other All Stars and other times not. As ASMu is in the middle it works out quite well and quick anyway.
We'll be going back to WDW next year and are going to get there just before our youngest turns 2, so we're now a family of 7 going! I definitely want ASMu again. Before we booked I secretly wanted ASMo because I thought it looked better, but we had to go with where the family rooms were.
As all the AS resorts are close together, we took a walk around the Movies one. Our children enjoyed looking at the characters and having their photos taken in RV (the car from Toy Story), etc, but really it's not much different.
I have a question - does anyone know if all the family rooms are on the pool side? This is the side I would prefer, so we can check on our bigger kids if they go out to swim.