Based on my first listening of the snippets, this would be my ranking:
1) Proper (the best one of the bunch imo, I hope he won't sing in English if he qualifies)
2) Indigo (peculiar song, I'd like to hear the whole thing)
3) Gregor Ravnik (nice verses and overall mood, but weak chorus from what I've heard)
4) King Foo (it's messy, I don't like this at all)
Maybe the full versions and live performances will make me change my mind, but I don't think any of these acts are dangerous contenders.
[MENTION=11532]EscGeek[/MENTION] Has anything piqued your interest?