Help me decide! I am looking at my trip for next May- a week long trip to celebrate my husband and I's anniversary and our will be 3 year old's bday!

I want a good pool- splash pad. We are staying GF RPC in October (maybe I should decide where to stay after that... But I am obsessed.) So, we are staying 4 nights at GF in October. For May our options are in terms of price, all are club level choices- Poly, garden view. This is the lowest of the MK resort Club level options available to me. (I'm not considering WL due to construction.) Poly Lagoon view, about $400 more. Contemporary Atrium club- $200 more than base price. GF SL- $200 more or GF deluxe king main bldg, $1,100 more (the king is $200 more than standard RPC, and I would pay the $200 for the larger space & king bed.)
So, what would you pick? Splash pads are important as well as zero entry pools. I also have celiac- so I want a club level that will do best for that for me. best options for breakfast, snack and dinner apps that are gluten free.)
(One concern I have with poly is that recently someone stayed and all the afternoon snacks were those filled with gluten.They didn't have chips that other resorts had, so would there be anything offered or provided that I could have. I would also like a property that does some cheese & meats in the morning, so I can eat something GF...)
THANKS!