Both Riverside and FQ are lovely, and I'd happily stay at either one (I've happily stayed at both multiple times). There are some differences, namely the size of each resort, and the theme. FQ is the smaller of the two and is nice and compact. Riverside is more spread out. The food courts mirror that; FQ's is small, and Riverside is roomier. Both have pretty grounds, FQ is New Orleans, and Riverside is more greenery, and larger lawns. You can easily walk between them, and I try to do that at least once a trip. FQ has fresh beignets, so...