Read the blog post linked on the previous page:
The correct order appears to be:
HP3: Bose QC15
HP5: Beats Studio
Taking the perceived spectral balance plots into account some listeners had problems getting proper seal with the AKG cans. This would also explain how some reviewers say their K701 has enough bass ("bass-heavy" version*) and others say it is lacking bass.
*) The old "explanation" was that there are huge manufacturing variations leading to bass-heavy and light versions..
Yes, I think the paper shows that bass leakage was more of a problem on certain headphones than others. See slides 34 to 39. HP2, HP4 and HP6 tended to have more variation in measured in-ear response across subjects due to headphone fit / air leaks. You see the same variance in listener preference for different IE monitors if they don't have a good seal.
Once people are presented the same signals at their ear drums, they will agree more on what headphones they prefer. Easier said than done.
Edited by Tonmeister2008 - 4/25/13 at 2:26pm