I was at the 14-U Nationals. Most of the bottom half (not all) was fantastic. If the ASA Easterns, Westerns, etc. has teams like that were in the bottom half of the A Nationals, then there are some serious, serious teams out there.
The Oregon Thunder I believe was in the bottom half. They won Fireworks and have a pitcher who throws 64 mph. The Intensity I think were in the bottom half. The Washington Absolute Blast were in the very bottom and I know them and how good they are.
Another thing to keep in mind is that you could replay about any top tournament and the results will likely be largely different. The top half dozen or so will probably still be about the same, but everything else might be jumbled. In Moline, I watched games non-stop and saw no average teams.