well, the most obvious thing none of these "audiophiles" has asked before bashing one brand and promoting another, is:
what kind of music do you listen to?
different brands will be better for different genres, without necessarily being better or worse as a brand.
For example, someone might not want a completely neutral sound. (i know i dont). Someone might want more pronounced lows. as much as I think sennheiser makes quality headphones, they only really have 1 or 2 models that aren't completely lacking in that area.