Well, I have to say none of them. EVERY restaurant is going to have a bad day once in a while. Fortunately, my experiences for the most part have been good. But as sure as a general consensus here says one restaurant NEVER has a bad day, you will go there and it will be a bad day. Things happen all the time - people take sick days without notice or quit, leaving a restaurant short handed. Supplies aren't delivered on time, or a power outage shuts things down for a while right in the middle of the rush.
For example, on one trip I had two Le Cellier reservations, a week apart at the exact same time of day - 11:30am. The first one, everything went perfect - from the seating, to the ordering, to the food, to the service, it was fantastic - best meal of the trip. However, the next week I went in, ordered the same meal, and everything went wrong - from seating, to ordering, to the food being prepared incorrectly (and nearly inedible) to having to hunt down the server just so I could leave. That meal was the worst meal of the trip. I was amazed that two dining experiences at the same restaurant only one week apart could be so different, but it just goes to show you that nothing is guaranteed.
So please, even though I know you'll get some good advice here from people who have had good dining experiences, keep your expectations realistic and roll with the punches if you have to turn lemons into lemonade.