The only two that I am aware of is Beaches N Cream and ESPN at the Boardwalk. We must be extremely lucky because I always hear about the horrible wait times at BNC, but we've never had to wait more than 20-30 minutes. We've eaten there at least 4 or 5 times, often being a big party (party of 8 once and party of 7 twice), yet we were still seated in less than 30 minutes.
That's interesting to know about Big River Grill. I had not heard that before, that they don't take ADRs.