I suppose most people will say Wolfgang's and we like it there. Given the ease of eating on site the food at Boatwright's isn't terrible. I really like the quick service at POR and POFQ. We usually eat breakfast there and supper a night or two. We probably stayed there 8 or so times.
Along with Wolfgang's there are lots of other options in DTD. I would check out all the menus before you go. Have a great time.