That is easy!
G&G were not only some of the youngest skating champions we have ever seen. Competitionwise they were also some of the strongest, only beaten once in amauteur competition and I think twice as newcomers on the professionel scene. Not only were their technical feats in the top leque of their time, their speed, lines, stroking and coordination were better than any pair before and after. Their programmes were beautiful and groundbreaking choregraphy and their musicality and interpretation best in fields.
Upon their return to the amateur rank in 1994 their performance in short and long programme showed added maturity and finesse
as well as an improwed showmanship and interpretation skills, which help them assure their second Olympic gold in a strong field of competitors. The only former professionals who won a gold came very well prepered and with all their skill and speed intact.
As for Katya as a solo performer. I would say. Never a great jumber but a truly original and strong performer, recycling the stroking, speed and elegance, which made her part of the best pairs teamever