I've been to both. On our upcoming trip we're doing Hoop De Doo for the 4th time. I don't think I'll ever do the BBQ again.
It just wasn't for me. It was very loud, you eat cafeteria-style, on long tables, outside but under a tent (think humidity), with a dissapointing buffet. The entertainment is good, and at the end there is dancing with the characters, but it's crowded and some of the kids (even adults) get pushy. I was afraid to let my kids near the characters on the dance floor.
The high-point for my four kids was the dessert. They have a open-top freezer with Mickey bars, Minnie bars (strawberry fruit bars) and ItsaKadoozies.
Overall, pretty dissapointing.
The HHR on the other hand, is great family fun and really an enjoyable night.
Susan