For me the best performance came from Virtue/Moir across all four disciplines of gold medalists. I do think, overall, the best discipline was men, though, with three excellent medalists, and some good performances spattered throughout the discipline (Jin's SP, Aliev's SP, Chen's comeback LP, Rippon's LP, so on).
Savchenko/Massot were the "story" of the event, I guess, with their fourth to first, but personally I enjoyed Duhamel/Radford's LP more.
Zagitova's missed 3Lz+3Lo that she added back later in the LP - probably with her best ever execution of the element in question - and won, was another highlight.