I would have to put moose at the top of my list for big game meat. I've killed two in Montana over the last 40 years. It is to me, better than any of the elk meat I've taken. Both of those are well above deer.
Far enough that I have not killed a deer in a long long time. I still buy a tag,,just in case. But it goes unused, year after year.
Pronghorn,, I've had really good and pretty bad,,,so they are lumped in with deer for me.
Upland birds,, huns are as great on the table as they are fun in the field.
Mallard ducks,, I killed close to fifty of them one fall way back in the day. I liked them especially cold, sliced for a sandwich.
PS: A friend and I bought a hind quarter of bison from the FWP when they did the killing of YNP bison. That was damn good also.