In alphabetical order:
CALGARY: Shane O'brien, Chris Butler, Derek Smith
CAROLINA: Jay Harrison, Mike Komisarek, Brett Bellemore (Harrison is pretty ok, Komi & Bellmore are so bad they go all the way around, come back to good, and then keep going to bad again.)
COLORADO: Ryan Wilson, Cory Sarich, Nick Holden <-- Worst defence in the league by the way, bar none
DALLAS: Brenden Dillon, Aaron Rome, Jordie Benn
EDMONTON: Anton Belov, Nick Schultz, Denis Grebeshkov
FLORIDA: Ryan Whitney, Ed Jovanovski, Mike Weaver (aka the "Over The Hill Gang")
ISLANDERS: Hickey, Brian Strait, Matt Donovan
There might be a few other 5-6-7's that are either equally bad, or are almost there. Anaheim comes to mind. Buffalo is going with Pysyk/McBain/Ristolainen... and while Pysyk & Risto might be nice players down the line, rookie defencemen often take a while to settle into the NHL, and the Sabres back-end could very well be a poop-show this year (though a good developmental year nonetheless). Tampa might be in trouble, but Brewer as a #5 is good, despite Aulie & Mark Barberio being a rough 6 & 7. Vancouver are rolling with Tanev, Weber (not the good one) and Alberts: yikes (*EDIT* I forgot Vancouver just picked up Ryan Stanton off waivers. I have no idea if this is an upgrade at all)
I'm not saying San Jose has a great 5-6-7 here either... I just dislike hyperbole.