OK here goes a few at a time. Please note I have not listened to the tracks and I don't intend to, also these aren't comprehensive reviews, just first impressions:
Disposable - Didn't work for me dawg (sorry I'm supposed to be Paula). The distortion is distracting during the verses, work on that balance as well as vocal balance, roll the distortion on the verses. Overall the mix sounds hollow, distant (lots o' verb), and quiet. The verses aren't evenly loud, they get louder each time and there are stray peaks.
ocnor - that is a loud mix, very tiring, and what is the deal with the phase/flanging effect on everything? Even the backing vocals? Is this some bizarre mp3 artifact?
Kainz - decent mix. Again with the distorted guitar, it's like it's always there, like a drone on a bagpipe that I want to go away. Automate that thing, people.
jerberson - get the lead singer in a more forward space than the backing singers. He's got a distant verb, plus they are brighter than he is. Confusing. The snare sound isn't there yet.
Raw-tracks - great tone on the lead guitar. Again I want to hear less of the distorted rhythm. Make me beg for it. Good dynamics. See if you can bring out the "mwah" of the bass a bit better. Sorry, I'm a bass player
tenkas - OK here goes Paula: you took the song and made it your own. Definitely the most different, I think it could work if you got the backing singers out of the cavern you banished them to

Plus gimme just a
little of the distorted rhythm at a couple of places. Also your interlude needs work, the lead is too forward, sounds like a guitar rehearsal tape.
Sorry if I was a bastard, I promise to be nicer when the judging counts
