This is a bit of a sore point with us, but here was our experience. We were three families, two of us were two adults and the other was two adults and one child. We requested the bayou rooms months ago when we made reservations. When we got there to check in, they told us they couldn't put us in the Bayou rooms because they were reserved for groups and families with 5. We were incredulous, and couldn't believe it. They put two of us in the mansions. When our other party of two checked in later they were put in the Bayou. We were furious. We checked back later another Cm told us that she didn't know why we were told we couldn't be in the Bayou section. I went back later explained my complaint (politely), asked to see the supervisor. She wouldn't come to see me but sent back this young boy back, who had no clue and kept giving me the same answers. Since the supervisor was to unprofessional to give me the time of day, I gave up after a couple more minutes of trying to get the answer as to why we were told this.
Ha ha, so I guess what I am trying to say is that it depends on who the CM is when you check in. There are many rooms for 5 though and keep trying. It is one of our favorite places to stay though.