I used to go out of my way to get a leg of mutton, from a little farm shop, because the sheep came from the moor overlooking my house, and you got little bit more than the lamb for the money, and I liked the idea that the sheep had led a full life.
Roasted in the oven, with a bit of oil and water, couldnt tell the difference really. I wouldnt say it was any tougher, but then I like my meat well done.
I guess the reason its not so popular, must be that its more profitable for the supermarkets to kill the lambs, than wait for the sheep to grow?
So muttons harder to come by.
My preference is a good cut of beef, being a Yorkshireman, as its the most suited to yorkshire puds. [Plus I like the creamed horseradish]
But Id be happy wit any meat, and when I travel, If I get a chance to try something different like caribou, I'll always have a go.
Never tried bison. Intend to when in Ontario. [Even if its only jerky]