It would be interesting to know the factory of origin for each of the mince pies you rate. For example, the food manufacturer Matthew Walker makes 95% of all Christmas puddings sold in the UK in one factory in the Midlands.

Was thinking similar thoughts as nearly all are the same shape and size; the only notable variation in appearance, straight out of the box, is in the design on the pastry lid. Have noticed slight variation in the standard "nutritional values" but might retrospectively compare the ingredients lists.