I also like Stilton alot. Also good is Shropshire Farmhouse Blue.
My favorite is the one I was weaned on. Sharp Swiss cheese aged 2 or more years. Very hard to find around here due to the huge popularity of Baby Swiss Cheese. Few cheesemakers want to take the time to age it anymore. But if you've tried Swiss cheese and found it to be bland, believe me, a Premium Sharp Swiss is a whole different taste.