Well, that wasn't so bad after all! And the teams that have made changes have mostly been upgrades, so that's something.
Avs: Anything would have been better than those generic Reebok jerseys. Even the Rockalanche thirds would have made for a nice rebrand. But this new one is pretty great. Throws back to a fan favourite, and simplifies the striping. This might already be their best yet.
Hurricanes: I didn't mind the Team Canada jerseys but they weren't really something they could call their own. This is way better, and like the Avs may very well be their best look yet. I especially dig the sublimated flag design in the hemstripe.
Flames & Sabres: They basically did the same thing as each other in getting rid of the useless piping on the front. They're not really what fans would have wanted, but for both teams that one small change has gone a long way.
Oilers: Not the Pacific Division team that I wanted to go orange, but it looks alright I guess. @Chazberg's version is better.
Wild: Now this I really like. Like the Panthers, it sucks that the chest stripe doesn't go all the way round but the simple number font probably necessitates that.
Preds: I've commented on them twice already, but now that I've slept on it this is probably the weakest of the bunch. It's not awful by any means, but they simplified it just a bit too much. It's better by default in getting rid of the bib piping though.
Devils: Well, I don't mind the redesign in itself. It's a lateral move if anything. But the reasons they came up with for the changes are kind of a stretch.
Sharks: All they did was change the shoulder patch. But I like the new patch, so I guess that's a win. Not so much on the white jersey though.
Blues: Unpopular opinion. I prefer the white numbers.
Knights: One of a few teams in NHL history to nail it on their first go. The grey works better than I expected as the base colour, and overall they've really done well in setting themselves apart from the Ducks in spite of drawing from the same influence.
Lightning: Turns out they ditched the laces. Fair enough.