Here are US senior dance teams' international results and point totals so far this season. (Leaving out Belbin/Agosto because they're obviously way ahead of the rest.)
Obviously the numbers are not directly comparable because different events used different compulsory dances and different judging panels, different standards of the field as a whole (esp. JGP vs. senior events), and of course the same team may give totally different performances as different events. But it may give some sense of which teams are likely to be competitive with each other and which are on different levels.
JGP Slovakia:
3 Trina PRATT / Todd GILLES
USA
161.79 4 2 4
JGP Croatia:
2 Trina PRATT / Todd GILLES
USA
155.64 1 3 2
Nebelhorn:
4 Loren GALLER-RABINOWITZ / David MITCHELL USA
155.06 5 4 4
5 Tiffany STIEGLER / Sergey MAGEROVSKIY USA
150.04 6 5 5
Karl Schaefer:
5 Kimberley NAVARRO / Brent BOMMENTRE USA
146.06 7 5 4
Skate America:
5 Jamie SILVERSTEIN / Ryan O'MEARA
USA
155.51 6 4 5
7 Tiffany STIEGLER / Sergei MAGEROVSKI
USA
142.94 11 7 7
Skate Canada:
3 Melissa GREGORY / Denis PETUKHOV
USA
164.12 3 3 2
Cup of China:
5 Morgan MATTHEWS / Maxim ZAVOZIN
USA
157.72 6 5 5
Golden Spin:
2 Caitlin MALLORY / Brent HOLDBURG USA 152.67 2 3 2
Check here for comparisons of these teams and others against each other last summer:
http://www.ice-dance.com/events-results/LakePlacid05.htm
Check the various sectional results this weekend for the latest news.
Lots of strong teams, including some who have not been competing internationally this fall for various reasons. I would not be surprised to see one of those listed above finish out of the top 10 at Nationals -- which just means that there are more than 10 decent teams competing this year.