There's a new Mexican place in the Socca Oven location. I was unimpressed, based on a single visit.
Love Imperial Tea Court. Probably eat there two-three times per month. It's the only place in Epicurious Garden I frequent.
The original Gregoire's is still fantastic. He'll be celebrating five years in June. This month, my picks are the smoked duck for lunch, and the chicken wings and lamb chops for dinner.