Eh, I don’t really see why everyone is so wowed by the Hakkinen-Zonta-Schumacher pass at Spa. It was opportunistic, yes, but he more or less lucked into the fact that Zonta was there to finally allow him inside. I guess it’s because it happened on a straight rather than into/in a corner that I hold other back marker aided moves in higher esteem.
As for best move, I agree that either Piquet on Senna in Hungary or Mansell on Piquet at Silverstone are two brilliant displays. The former being a great example of psychological racing prowess and the latter being a great example of physical racing prowess. But it is something that is incredibly hard to quantify. Case in point: there isn’t a particular single pass in it that is “the best” but the battle between Villeneuve and Arnoux at Dijon ’79 is the stuff of legend, obviously. So does that count?