[sbkbghockey]

In the US
USHL is the top Jr. league, it's a US Hockey sanctioned Tier I league
slightly below the USHL level is the NAHL, the only Tier II league. And there's been a lot of growth in the talent of this league over the past few years.

In the Tier III leagues the level is generally below the U and NA, but a number of players go to the NCAA from the Tier IIIs or move up to the top Jr leagues then go to college.
I'd rate the tier IIIs in this order (although there's not too much of a difference btwn most of the leagues)
EJHL
MNJHL
NorPac
AJHL
CSHL
WSHL

Then there's the independent Jr. A leagues are not sanctioned by US Hockey, their levels of play can very dramatically and the teams and leagues tend not to be as stable as sanctioned leagues.
GMHL is an lndy league located in Ontario, idon't know much about it.
UJHL has a pretty good level of play on average a Jr B/low A level
NJHL is new for 09/10 but is made up of teams that left the UJHL plus a few others, I assume the level will be about the same.
The IJHL ranges from high school level, Jr. C, to B level, maybe a few teams that could compete in USA Hockey Santioned Jr A leagues.

there maybe some others I don't know since these leagues pop up and others fold every few seasons.

Our team played an ex game against an IJHL team a few seasons ago and they sucked!! Our team is an ACHA DII team, most guys played varsity HS, prep school, or Jr. B. We had a few guys that played AAA and Jr A. The IJHL team was no where close, they couldn't pass, hit, shoot, etc.. their coach yelled and threw tantrums every time there was a penalty (all they did what cheap shot us) and every time we scored.