The Amarone but only because I have never experienced an Amarone.
Wine Spectator rated three Barolos from Sordo very highly in 2013 but didn't rate the one you've got. It's probably excellent. They didn't rate the other Barolo you've got. They rated the Amarone 89 points and advised to drink it in the next two years. Hopefully this info helps!
I'm not surprised that your wife preferred the Cab. Nebbiolo is one of those wine grapes that people seem to like a lot or not at all, with seemingly few people taking a position in between.
I've never paired an Amarone with food. The wine always struck me as akin to drinking raisins. It's an interesting affair, but best consumed with some nuts or dried fruit IMHO.
I'm confused: you've never paired it with food but you think it's best with nuts and dried fruit. Those pairings seem to be naturals. Try it also with rich cheese. My favorite pairings are a main dish of lamb or venison and raspberry sauce or a dessert of any rich chocolate with raspberries or raspberry sauce.