My wife and I have been to Mahogany 3 or 4 times now, and it is my favorite bar in Philly. Warm, elegant atmosphere, a TV or 2 to watch the game, friendly service, quiet. I have never seen it too crowded, even on weekends. The pizza and charcuterie (meat an cheese) plate are both very good. Good for after work; most clients are dressed well.
Pros: relatively quiet, food, drinks, atmosphere, no crowd scene
Cons: a little on the expensive side; parking, of course