I had the second show last night. The seating for me as a Blue Bayou person and the RBT was exactly the same. The line up in the holding tank was the same, first come first served, all grouped as one large group. We had seat cushions from BB. The RBT did not. After we were all sitting down, a mob of people were let in to sit behind us. I asked them what they did to get to sit there and they said they had Hungry Bear on the go package. BB and RBT all had first row and the rest of the area was full of Hungry Bear people who were sitting down. I told them I was under the impression that HB had to stand somewhere and they said, yes, they were standing in another area, but were told that there was extra room in our area and they were allowed to move if they wanted to sit down.
I didn't see the show from RBT, but my opinion after last night is that it would be my last choice for viewing. If you are capable of sitting on the ground, BB or RBT dining packages are better. If you want to chance it and maybe have to stand, go to HB. They may let you sit with BB and RBT people even though they say HB is standing room only.
I'd pick based on menu items. What do you want to eat? How much do you want to spend? Where you will be seated is not the issue when deciding where to book your dinner, at least not for the second show.