On a weekend night, you betcha. All the locals are there.
I arrive the Saturday after Thanksgiving; I usually go alone and sit at the bar. I took three friends a few years ago and the wait at RFC was three hours. We braved the cold and sat out on the deck.
T-Rex is also very popular.
Paradiso 37, you could probably get at the bar or they have outdoor seating, so it could be possible during the week.
Same with Ragland Road, you have a better chance during the week, but weekends are tough.