My favorite is moose, but that's because I lived on it for a while and it has great sentimental value to me. I like most wild meats - like the animals themselves they all have their own personality. Best??  Whichever one I am eating at the time.    

I killed a bear this fall and it was the best meat I've ever eaten - I rendered the fat and the cracklins melted in your mouth

Mountain Lion is my favorite. I can't tell the difference between deer and elk. A good pronghorn is probably my second favorite.

In my opinion, the best tasting meat depends on where you are, how you got it, who you are with.
Crappy meat can be the best thing ever if you are really happy with your surroundings and in the moment!
The best meat we ever eat is whatever we bring to our butcher and cook on the open fire as we all help processing the meat.
Cream soda for the kids, 12 year old scotch for the adults, some home made beer......oh man is that fire cooked meat phenomenal!

Young deer with spots, they are milk feed like veal, or a cow elk.