Question to Kai and others:
Why is it that they suck so much, if we look past the whole whether they are metal issue?
First off, I'm not being a snob, I actually think those bands are terrible.
Poison the Well and Norma Jean fall under the nu metal/metalcore genre hybrid, and while it can be done right (very, VERY rarely), most of it is absolutely terrible, and those two bands are included. The general gist of it is, these guys' idea of playing metal is not coming up with any remotely interesting riffs (or god forbid, solo once in a while), but instead mash mega-distorted power chords while the singer performs the least appealing part of metal (toneless screaming). Not to mention that the songwriting in nu metal/metalcore is always horribly unoriginal, derivitive, and quite frankly, really fucking annoying. Not to mention this type of band takes themselves utterly and completely seriously, which is really not what metal is about.
I wouldn't call Converge metal or even metalcore. They're more just hardcore punk. And they still suck, in my opinion, although I don't hate them nearly as much as Poison the Well or Norma Jean.
Basically, if you want to know what sort of metal to NOT listen to, go to this year's Ozzfest. Essentially, the entire lineup (with the exception of Lacuna Coil and Strapping Young Lad, the latter of which won't even be playing the entire tour) is a gigantic fucking joke.