Cook the bacon in a large, deep skillet over medium-high heat until evenly browned, about 10 minutes. Drain the bacon slices on a paper towel-lined plate. Spread one side of the bread slice with the mayonnaise. Spread blue cheese dressing and buffalo wing sauce on the other side of the bread. Arrange the cooked bacon, lettuce, and tomato slices on one slice of bread, top the other side with blue cheese crumbles. Bring the two pieces together to make a sandwich.