The one on the left "my ram" in the first picture is on the very right in the latest picture. I think the one I like has bigger bases and is 2 inches longer. I know "your ram" has a full curl.
What I am focussing on though is the size of the ram(s) head. The ram I like is a bigger bodied animal and has a bigger head. The ram your buddy likes has a smaller head. You can scale this in the picture with your mouse pointer. My ram drops below the jaw line and flares a bit and remember he has a bigger head.
I think you will be dissapointed if you think the one you like will go 168. I think he is a little under 160.
On the other hand I think my ram goes 167. (35" x 15", 14", 12", 7.5").
I have to admit, I am only looking at photos. In the end neither ram is close to any record book so I would tell the hunter to shoot the one he likes. His opinion is all that matters.
You can school me when he kills one of them. I always like to see how far off I am.
Enjoy every moment because sheep hunts don't come along too often.