I saw "Sylvia" on Monday, Tuesday night and the Wednesday matinee. Here are some comparisons:
Sylvia: Gillian Murphy danced superbly and I loved her mime. She actually tried to build an emotional arc to the character and she was charming. Gillian and Marcelo had wonderful chemistry onstage and she looked genuinely enamored of him in the final act. Polina Semionova has a flawless effortless technique and great personal beauty. Gillian has a more athleticism in her dancing (fine for a warlike Amazon) and sort of snaps into her positions and steps. Her dancing has physical force. Polina was totally smooth and even - it all looked effortless and sort of the same. Her dancing lacked dynamic levels for me even if her body is stunning and the steps are all nailed without difficulty. It didn't mean enough. Semionova's acting was lovely and she is a beautiful woman with a sinuous body - her odalisque-type harem dance in Act II with Orion was the best of all. Part's regal beauty and great stature made a perfect vision as Sylvia. Her Act I was excellent throughout though there were places where I felt the last-minute change of partner and the lack of rehearsal and experience showed. She seemed a little unsure of how to place herself on the Amazons' bows in the Act I entrance pas. Also Veronika still has bad trouble with unsupported pirouettes - supported ones as well - she has a tendency to spin off-center, tipping off the vertical and nearly falling out. I have seen her struggle with these in the Shades scene in "Bayadere" and also in a recent rehearsal of "Corsaire" she had problems with a combination in the Act II pas de trois based on unsupported spins. Here the trouble came in the Act III pas de deux where Sylvia has to do an unsupported pirouette and Aminta rushes in and catches her - she nearly collapsed on the first one and Marcelo jumped in early to steady her. She did better on the second one but it was a fraught moment. Otherwise, Part's phrasing, broad jumps (I think as impressive as Osipova's) and musicality were gorgeous. A very fine debut that will improve if and when she gets a chance to repeat and refine it.
Aminta: Gomes bring a lot of passion, impulsivity and more dramatic variety to the role. He dances it wonderfully. Bolle has the carriage and nobility and plays a simpler, more passive, romantic character. He is more classical and stylized in his execution of the choreography - Gomes hurls himself into the steps whereas Bolle is more a classical statue striking gorgeous poses. Glad I don't have to choose between the two.
Orion: All three danced really well. Corey Stearns had the blandest characterization but may have danced it the best with stunning split jumps. Jared Matthews was working the old-school Bolshoi Vakhtang Chabukiani/Gedeminas Taranda popping-eyes, manically grinning savage ballet wild man routine. He was a lot of fun. Very over the top in just the right way. Whiteside had a very good balance of strong dance technique, imposing physique and stage presence.
Eros: Both Simkin and Salstein were fine. Simkin more easily morphed into a god-like divinity and his dancing was very aerial in Act III. Salstein relished the humor of the old-man magician impersonation. He also danced strongly in Act III with fine scissoring jumps.
Shout out to Joseph Gorak and Sarah Lane as the Goats in Act III - what dancing and stunning style! They got cheers. Arron Scott and Gemma Bond were also fine on Wednesday afternoon. Leann Underwood was lovely in the mostly mime role of Diana on Tuesday. Stella Abrera was a vision of loveliness as Ceres on Tuesday. I liked Roddy Doble's concerned Greek shepherd who finds the fallen Aminta on Tuesday night.
BTW: in the past the coaching of the corps has been poor in this ballet. Usually the dance of Fauns and Nymphs in the first scene was a shambles. I only found out what Ashton intended when I watched the video from the Royal Ballet with Bussell and Bolle. It looked much better this time around and many soloists like Isabella Boylston and Misty Copeland were filling out the corps as Sylvia's attendants in Act III.