I'm onto my second one, because on the first the rubber around the
earbuds became frayed and fell off making wearing them uncomfortable.
The second pair is a newer update. It's rubberized coating around the
wire makes it less likely to tangle. It's a fine pair, but they too are
starting to fray at the earbuds.
My main criteria will be cost. Again, I'm on my second set and I've had
the iPhone for two years. I can't imagine spending $150 for earphones
and then losing them. Or that they suck.
And they still need to have the inline remote. That is awesome.
http://www.bit-tech.net/hardware/2009/02/13/replacement-iphone-earphones
-on-test/1