If you ask "Who was most artistic?" everyone will have a different opinion and different preferences.
If you ask, e.g., Who had the best carriage (and define what is considered good carriage), who had the clearest movements, whoh ad the best variety and contrast of movements and energy, which program had the clearest idea/concept/vision/mood demonstrated throughout the program, which program filled the most of the ice surface with the most complex and varied patterns, which skater filled the space around her/him in the most directions and the most different ways, which skater/program best matched the movements to the music, which program showed the most new moves and variations and ideas that we haven't seen over and over throughout skating history recent and/or distant, which skater moved most in time with the music, etc., there will probably be a lot more agreement on each of those criteria individually.
Who was most physically/emotionally/intellectually involved in their performance, who projected best to the audience, who showed the best individuality and personality, who best expressed the music's character, feeling, and rhythm, who best demonstrated finesse in reflecting details and nuances of the music, you'll probably get more agreement than in the general question "who was most artistic," but more disagreement than in some of the less subjective "artistic" criteria.
And then of course there will probably be disagreement about which of those various criteria are most important or otherwise in how to weight one against the other.
But you might be able to get some agreement in situations where, say, Skater A shows the most personality and engagement with the spectators, but mostly in the form of facial expression and arm movements well timed to the music; Skater B has a unique concept to the program with lots of creative body positions and other unusual details but doesn't match the music very well; and Skater C has lots of familiar moves to familiar music executed with complete control and full use of the whole body and whole ice surface.
In which case, one might say that one enjoyed Skater A the most, Skater B was the most creative, but Skater C deserves the highest component scores according to the guidelines. And there's no need to debate which one was more artistic than the others.