The Wolf is the better value, if all you care about is a good functional .50 cal. I have a .50 cal Wolf and a .45 cal Optima with a couple of 12ga shotgun barrels too. Different barrels and fire control group notwithstanding, the Wolf and Elite are nearly the same rifle and they perform nearly the same. but the Optima is more versatile, because a wider selection of ML barrels (including Bergara) have been available for the Optima in the past. This seems to be changing as anything other than a .50 cal inline is relegated to the high end of the industry's product lines.
The Optima also has a decent ramrod (the Wolf rod was hijacked from holding up a RV trailer curtain) and a better stock for a scope, However, I just shot an Oregon whitetail with my Optima .45 and I used my Wolf stock on the Optima because it works better for me with Oregon-legal iron sights. The higher comb on the Optima stock works better with a scope.
I should mention that my Optima is further modified to be Oregon ML season legal. (I turned and milled a custom percussion cap firing pin and milled a breach plug, firing pin bushing, and port on the side of the barrel to expose the cap to the "weather" and make it visible.)
If I find a little time, I'll post some pics.