Tribute is strong in Big Money mirror matches.
It will most often be +$4, +2 cards +$2, or +4 cards.
+$4 - means you'll almost certainly buy a Gold or Province.
+2 cards +$2 - better than Smithy unless the Smithy would have drawn a Silver or Gold.
+4 cards - better than Smithy.
Less likely outcomes:
+2 cards +2 actions: As good as Laboratory for you (actions don't matter) and it means you flipped your opponent's key action card.
+2 actions +$2: As good as Silver for you (actions don't matter) and it means you flipped your opponent's key action card.
+2 cards: Poor outcome.
+$2: As good as Silver (actions don't matter) but at least you flipped two of his treasure cards.
The main problem with Tribute in BM is that you have to draw exactly $5 to get it, because Gold is the strongest BM card.