Aside from P&C, all of the dance teams have deficiencies in their skating, so I really think it's about who has the least? Who has the highest bar for potential? IMO, if we are talking about the dance field, here's how I see it - We have P&C above everyone. If they skate clean, no question they are in 1st place.
Then, it's HubDon and SinKats in the next tier. HubDon have issues with being sloppy. They've cleaned up their skating alot in recent years, but I still see mismatched lines, balance checks, and losing track of one another. SinKats can be sloppy, but not for reasons for line or unison, but rather, they can get out of control. Too much speed. Out of control edges/curves. Their twizzles and one-foot steps can be messy, but they have stronger spins, lifts, and step sequences than HubDon. The choreographic elements are kind of a toss-up. Both teams have issues with execution and conception.
Everyone else kind of bunches up below them. I see ChoBat as the top of the next tier purely because of their choregraphic elements. With the rules changes giving so much GOE to the three choreographic elements, a team like ChoBat can really rise above more technically proficient teams like HubDon and Sinkats. Their elements are innovative and well-performed - their choreographic slide this season is perhaps the best choreographic element we've seen. GuiFab have strong elements, but lack the charisma and choreographic "wow" elements of the top teams, meanwhile GillPoir are the weakest skaters of the bunch, but always try to have innovation in their elements. How the Team Event RD played out, it made sense to me that Gilles & Poirier came out in 4th. It's what the skating dictated.
In regards to SinKats only getting 2nd to HubDon because of Nikita's mistake, and still winning PCS - I don't really think HubDon did anything special in the RD performance wise relative to SinKats. SinKats would have been at 87+ without Nikita's mistake, which is more or less on par with how scoring has been this season. They had a stronger Midnight Blues than HubDon, which would have made up the scoring difference if both teams skated clean. It's honestly a close competition to me between the two.
What we really should be talking about is what the hell the Canadian judge is up to, placing HubDon 3rd, SinKats 1st, and GillPoir 2nd. The scores for these teams are pretty much all in the 85ish range from that judge, which is just absolutely absurd. GillPoir's skating was far beneath the top two in the Team RD.