Are you looking for Neko Case or New Pornographers recommendations? If you want another solo album, Fox Confessor Brings the Flood is my favorite of her solo albums. With New Pornographers, any of the first three are worth spending more time with.
I love festivals that just say fuck it, here are a few death metal bands for the lulz
It's too bad Sasquatch can't be so bold. We only get heavy bands if they're Pitchfork approved, or maybe local. I'd still love to see a more extreme local band like Agalloch, YOB, or Wolves In The Throne Room slipped in the mix. Those bands are legendary among underground metal fans everywhere.
Yeah, I'm kind of with Drew. Tickets would be half the price and you'd get a stellar live band. With The Knife you're paying to hear their stuff blasted loudly over nice speakers (not necessarily a bad thing!). I can see either choice being fine.