I'm not going to put in order, but just what I think are promising tribes:
Theory - Seems to have some good players, look well organised and good exterior
iHate - Very hyped up, but good players, hype make come to haunt them
Frick! - Love the name :icon_wink: Great players, great friends, shouldn't be too hard to go far
CODE - They have at least one player there I know looks for good tribes, so if he thinks he's found, he's found it.
ASBO - Love the name and I've heard good things
And as a very bias throw in:
Lost~ - But ONLY if they try.