Thanks everyone for your suggestions. On the basis of what I have read here and over at AutoGeek, I have decided to ask the fam for Pinnacle Souveran. Within my arbitrarily chosen price range, it's the most expensive wax. Everyone agrees that it looks great on black and that it's a joy to apply and remove. Hopefully I will find a jar of it under my Christmas tree.
So many good choices. I was particularly tempted by Victoria Concours Red (never applied a wax by hand before). Some day I'd also like to try 50/50, Lusso Oro, and P21S. But given pocketbook restrictions, these will probably have to wait until subsequent Christmas's.
The real question is whether I'll be able to discern a real difference between Souveran and, say, M26. If Dave's wax test is accurate (and I suspect it is), I probably won't be able to. When it comes to blind testings, whether it be beer, wine, or single malt scotches, I never seem to identify products correctly, though even I can tell the difference between Oban and Laphroaig. But can I distinguish between Oban and, say, Glenmorangie in a blind taste test? I tell everyone that Oban has long been my favorite, though it has become unaffordable in recent years; but I do not trust myself to be able to pick it out from among a range of similar scotches, whether expensive ones or inexpensive ones. My palate is insufficiently trained.
What what extent does price and reputation inform our appreciation of the appearances created by specific car waxes? Can our "palates" be trained through experience to appreciate superior waxes? Or is it all mainly prep?
Thanks again.
Al