Cool idea for a thread, love to read about the flavours people favor.
I really enjoy wild game and fresh fish, it's not easy to pick a favorite, however some dishes become habit forming (like deer heart stroganoff), and are prized due to the rarity.
For me, hangar steak seared on a hot rock is the pinnacle of rarity. Doesn't really matter the ruminant - so long as it hasn't been poked in the guts. I think it's a good contribution to this thread because the diaphragm can be so much more than a cut for the trim, or worse, gut pile.
Diaphragm by any name is really quite good. Resembles a flank steak, and on wild animals almost has to be filleted out of the connective tissue that surrounds it. It's worth the effort though (even on a small deer) for a tender and juicy texture that can be found nowhere else! If I have the convenience of a real kitchen nearby, it will generally get saved for steak and eggs the next day, but I remember it best salted and seared on a hot rock in the backcountry.