I'll go first unless someone else beats me whilst I type this,

For me if Santa was feeling a little flush with cash a Holland and Holland Royal De Luxe in 500 N.E- no brainer

No scope just regulated to express sights for 50 - 100 and 200 yards, in its Oak and leather case with all tools with ivory handles.

As for the hunting to accomapny it, anywhere where buff, hippo and elephant roam freely.

For a large magazine rifle, this is a sinch as I already have it, my .500 Jeffery by Trevor Proctor, however if indulgence is the name of the game a .416 Rigby (by Trevor Proctor and NOT Rigby!!) with Swarovski 1.25-4 x 24 scope in Q.D mounts