I will be visiting Philadelphia on business next week and will be staying near Rittenhouse Square. I'd like suggestions for really good restaurants within walking distance for a small group (4 or 5). Nothing real formal, but good food/wine a must. A nice bistro would fit the bill. Anything distinctively Philly would be a plus. Cost not really an issue.
Thanks in advance. It's been a long time since I've been to your fair city, and am really looking forward to my visit.