I think Fournier-Beaudry & Sorenson have the advantage on S&F in speed, maturity, and competitive experience--as well as international exposure. (Twizzles, however, more in question; and the footwork levels are not always there. Usually takes F-B&S a while to get them after they debut. This season, though, they are keeping an old FD so that should help with the fact that they aren't getting a regular ISU season). I think this team has the higher international threshold at the moment. Could fight for the top ten. Not sure if the national judges will feel the same as I do; but F-B&S could convince them with strong performances.
I think Soucisse & Firus have a lot of learning to do, but they gelled quite quickly and they are trying different things and demonstrating a good learning curve. Their footwork levels were often level 3 last season and are not looking that way right now. I also think they benefited last season from being ranked so high at home, despite having little experience; but when there is a vacumn, someone is likely to fill it. Which is what happened. So I see this as a learning season for S&F; but that should make them stronger in the long run. They aren't out of the running, though, as F-B&S do travel quite the gamut when it comes to the quality of different performances.
Lajoie & Lagha. It's always very difficult to know how a young team will transition to seniors. I think it is good that they have stayed in juniors this year. Pretty clear that there is no sudden gap--as it appeared their might be a year ago--on the senior team. Staying in juniors is allowing L&L to learn how to compete under the pressure of expectations, gain stronger JGP and international credentials, and make a run at spots on the podiums. Think just like for the other two teams that the footwork sequences are the main question mark. Sometimes 3s but also 2s and at the junior level (the senior callers tend to be tougher). I've never seen L&L live. I would suspect that they probably still have some growing to do in order to match the speed of at least F-B&S. But they are reaching the point where their time together as a team is helping their performance level. Gaining good experience.