I like the milkshake as well, though I must admit to getting milkshakes less and less whenever I order fast food. I get their lemonade instead, which, I swear, tastes almost exactly like my mom's homemade lemonade (only hers has pulp in it).
As for spicy food, just about the only spicy food I will willingly eat is occasional buffalo wyngz; otherwise, I haven't got the stomach for spicy food.