Hush has pretty much nailed it. I don’t think an 82 SA would take a backseat to a Cooper, unless the Cooper were highly optioned with exceptional wood. As a purist, and as I look at a Kimber of Oregon stock lying here next to me, I am struck by the subtle shaping and styling cues of the Kimber. I own both Kimbers and Coopers, and I would give slightly higher styling points to the Kimber stock; Kimber consulted with Len Brownell on styling, and it shows. Now, the Cooper is no slouch, but an experience eye can spot the very slight differences.
On the actions, I would give the nod to the Cooper, especially compared to the 82 “A” and “C” actions; the KoO “B” action is probably about as solid, design wise, as is the NY Kimber K22. While all 3 have made dogs, accuracy wise, I think the odds of getting an exceptional Cooper are probably higher, and they are still around, technically, or will be back soon, in the event something is subpar on a Cooper.