I'm just going to list them in tiers, since sometimes it's really hard to distinguish.
1. MIT (by a lot)
2. Wright State (they wouldn't have been here last year, MIT stole their thunder), Golden Gate
3. Mira Loma, Westlake, Mentor, Troy, Cornell
4. UPenn, Solon, Princeton, Rice (though the TX teams were very split), Valley Forge
5. idk maybe Boyceville, depends how the area's teams are doing. Possibly Kenston and WL-S too. A few IL and MI tournaments could be put here, but I don't know enough about those areas.
If you hadn't already heard, Twin Tiers is basically dead.
1. Wright State (has been top pretty consistently in B)
2. Mira Loma (this and the next two because NorCal B teams are really strong right now)
3. Mountain House, Mesa-Wilson, Churchill, Mentor, Westlake, Kenston, probably one or two IL tournaments (but again, I don't know much about that area)
4. Probably Rustin (would have been tier 3 if not for snow), Boyceville, Cornell, a few IL and MI tourneys that I don't know about, Dodgen, Chattahoochee (though hopefully we'll be higher next year
5. no idea
Edit: Agree with mostly everything East says above