BC/YC/BW have a first rate pre-planning department. The best that I've had the pleasure of working with. I only have experience with the YC, but it's my understanding that they have a similar setup. The lounge at the YC was pretty small and yes I thought the offerings were much lighter compared to what we've had at the GF. I don't know about the Poly, but at the GF, the afternoon snack included a light salad, vegetables, cold stuffed chicken breast and at the YC, it was nuts, gummy worms, gold fish crackers, cookie assortment and pudding packs. We found the location to be a lot of fun though and the convenience to both Epcot and MGM was great.
Tammi