Shropshire Blue is supposedly made with the same recipe as Stilton. The main difference is its color, which is a vibrant orange-yellow. Since I like Stilton so much I wanted to try this cheese. The color is the result of an addition of a little annatto to the recipe.
It does taste almost exactly the same as Stilton. It has a slight sweet taste to it however, and the taste seemed a tad milder. The mildness may be due to the cheese not being aged as much as the Stilton I usually eat.
Bottom line, I think the only reason to choose this cheese over Stilton is if you are going for visual impact. Since Stilton doesn't taste like other blues you can put this across to your guests without them even having to taste the cheese. This might encourage folks who "don't like" blue cheese to try this cheese and be able to enjoy its unique taste