It's Friday night on Old South Pearl, and you forgot to make dinner reservations. Have no fear: There's always room for you at Hanson's. This idealized, college-town neighborhood bar comes complete with a great crowd, plenty of history (it used to be the legendary Oak Alley Inn) and the best bar burger in town. Ten ounces of grilled ground chuck, a soft kaiser roll and a side of the kitchen's zucchini fries are just the beginning, because what truly makes Hanson's special are the high-end toppings available on any burger. There are five kinds of cheese on the board, not counting the jalape?o-cream variety. Artichoke hearts, guacamole, garlic or lemon aioli, grilled pineapple, green chiles and prosciutto are all yours for the asking, as are the standard toppings. At Hanson's, everything is fresh, everything is well-handled, and the guys on the grills really know medium from medium-rare -- ten degrees of difference that make all the difference in the world.