Peninsula Grill, in the Planters Inn was amazing. Pricey and worth it dinner.
SNOB was very good, had a inexpensive lunch there in lieu of dinner.
Magnolia's and Cypress (and Blossom Cafe) are all owned by the same team,(and are on the same block, across the street from SNOB) so you may want to pick one. The menus for all 3 of them are posted at http://www.magnolias-blossom.com/
PS How are you planning to go to all of the restaurants if only in Charleston for one night???

What about the Westin? The Francis MArion? Anybody know?

We spent New Year's Eve at the Westin Francis Marion. it is truly an old hotel with all the virtues and problems. It is not a charming Southern inn kind of place but more of a business hotel. All the rooms are different. They are more than adequate but you'll not leave thinking you had a "Charleston" experience.

Location is fine; near Visitors Center. Price is good. However, for one night I might splurge and stay at one of the B&Bs or Inns near the Market.

The Frances Marion is out of the loop on King St.- to really experiene the real CHarleston, try the Elliot House Bnb near the Market- it serves cont.bkfst in room on silver service, has outdoor jacuzzi under a grape arbor (great to have wine and cheese) and also loans out their bikes to ride down to the Battery--definitely go to Magnolias and ask for a table in the back room-it's very private and decorated with HUGE pux of Magnolias-one of our favorite rest.--Also you can try Louis' for terrific french cuisine

Slightly North of Broad (S.N.O.B.) is wonderful! We were just there last week for lunch and everything was incredible!