I find that often the best service in a resturant is at the bar. Your drinks are always full, the food comes out quickly, and bartenders either chat with you or leave you alone, depending on what you want.
However, I have friends who just hate sitting at the bar. Even for happy hour. We will go to a place where we know the floor service is slow, and still they prefer a table. And I'm talking about 3-4 people, who can easily hold a conversation at a bar. What's the hangup? I prefer sitting at a table when I want privacy or romance, but the bar is sometimes a lot better for small social outings.