What are the differences in taste between frankfurters, brats, knackwurst & brockwurst?

Answer 1

Most of the differences are in the spices and the texture. Some are more garlicky than others, some have a more firm texture, and some are juicier.
You can also tell a difference between manufacturers as well.
Try out several kinds and you will settle on your favorite!

Answer 2

Almost too many to list...there are differences between brats and brats, depending on who made them.
Cook time, meats used, types of seasoning all affect the final product.