Fedora, while the cuisine may leave a bit to be desired, is like stepping into a time machine. On the other end of the spectrum, the Minetta Tavern just re-opened to raves. One if by Land - Two if by Sea is still absolutely delightful.
I love August (on Bleecker at Charles). The food and the atmosphere are wonderful! They have a cute glass-enclosed atrium in the back. The restaurant is pretty small and cozy overall. Nice brunch, too.