We like BC better. the main reason we like BC better is because we found BWK too sprawling.
In general, we find the 5-7pm offerings somewhat similar across all CL's, but menu changes happen often and without warning. (see recent postings about sunscreen!) So even if someone provides a menu, it might not be what you see. Menus change seasonally, when chefs move, and CM's have told us supply chains are randomly sporadic. Further, other guests might eat all the XXX. Staff might bring a different item, or they might not. Posted photos will give you good idea of options. Cheese, bread, whole fruits, and raw veggies are offered every day at every CL.
EVERYONE HERE should also know: the staff can't re-serve food. Anything left at the end of a shift just gets tossed (or maybe gets donated to a farm). Late in any shift, CM's stop replenishing food, especially late at night and when the lounge is empty.
I recently talked to a CM as she was cleaning up, and she confirmed she was about to toss the food she was gathering. I said I'd be happy to take all the goldfish crackers, and she was very happy to help me have them. Another night, oh - the CM was about to toss a whole tray of VERY fine chocolate truffles! Luckily, I averted the tragedy that night! We very happily took them to our room and ate them 24 hours later!
That said, if you have special dietary needs, just tell the staff upon arrival. I'm not sure how to word this, because I don't want to tell you what to do, but you have multiple options. At all dining, folks with food allergies and other special needs have multiple options. If you just want the server to note it (= chefs make sure no cross contamination) that's one option. Another is just to go it alone. Many QS carry prepackaged items, for example. Another option is to talk to the chef personally to discuss one's dietary needs/restrictions. If you opt to talk to a chef, they are usually fantastic about discussing all of your needs and options they have.