[mrreality68]

I would go with the Wagner and I actually like the look of the card.
Both are great cards but I believe the upside potential on the Wagner is still greater than on that Mantle(although both have upside potential)

Lower inventory and great demand for them.

The Mantle has a lot of inventory (not at that grade) but a lot of inventory and even with great demand there is so much total inventory easier to get a Mantle vs a Wagner