dredg is really good, especially live. Fans of Coheed and Cambria or Circa Survive could find a lot to like if they gave them a shot.
The Swellers fucked up on their new album. If they can muster up the emotion and intensity from their younger yeas once again then I think they'll be fine, but they won't survive my bands-I-like list with another record like their last. Their live show is awesome and the singer is one of the genre's best.
Polar Bear Club, I don't really get all the love. I've got their three records, but I've never heard anything from them that makes me think "I need to see this" or "I can't wait to listen to this album again". Their live show was fairly average last year, too. By no means a bad band, but pretty run-of-the-mill. I'm always ready to give their new albums a chance though, do they have anything planned? I hope they prove me wrong one day.
They poured the same emotion and intensity into GFM as they did with the rest of their back catalogue. Jono specifically said they didn't want to just write the fastest songs and they could, and wanted to instead make the best songs they could. They may have alienated a tiny fraction of their fanbase, and understandably so, but just because GFM is too poppy or too soft for your tastes doesn't mean they didn't put effort and heart into it.