We're probably going to stay at Pop in December...DH, DS7, DS4(5 by then), DMom, DDad and myself. We're getting two rooms, of course, but my Mom has some arthritis in her hip, and has good days walking, but some bad days. Is it a much farther walk to the bus stops & food court from the standard rooms? Would it be worth the slight cost difference to go with preferred? Is there one particular building we should ask for? 
Thanks for your input!

Thanks for your input!

I'll check the map of Pop's layout. I think walking distance will be more important than extra noise. Are there multiple bus stops? I didn't realize that. Very helpful.