We love Y&B. We stayed there in Feb 2001 (YC) when I was pregnant and are going back to BCV in March also. SAB is closer to Beach Club then YC. I love the theming and the resort is very beutiful. I did notice that there was a large convention at BC when were were there (eveyone was from Japan and there was signs in Japanize all over.)
Be careful, many rooms at BC only have a small standing room only balcony. ( I would hope a concierge room would have a full size one). All Y&B are full size. The view is great, we were upgraded and just loved it.
The buses to MK were fine, if you really feel like it you can walk through Epcot to monoril and over to TCC. (a bit out of the way.) And you are close to 2 parks (EPCOT and MGM.)
We did have a problem with noise at the resort. There apeared to be many drunk adults who didn't care much about being respectful to other and took atantave of their room being only a short walk from the bar. We were very close to the elevator. One lady was screaming in the hallway in japanize (sp wrong sorry) at 3:00 in the morning. Of course as I already said I was pregnant and really just wanted to relax and sleep, I wasn't in the mood to be messed with to start with!
The resort is top quaility and very fun enjoy concierge service. We are happy with a one bedroom, just want to but the kid in her own room!!!!
Oh I forget, I just read in the DVC news today that the water slide at SAB will be closed for referb unitl April 2 2003. How disapointing. The rest of SAB will be open.