It has to be a seal or a fit thing. Some people had a hard time fitting the Sony's. It is impossible for me believe that we are comparing apple buds to Sony ex-600. Even the Cheap Sony's they toss in with their Mp3's annihilate the apple buds. There is no YMMV on this one
Edit Spell fix
As I said I don't believe I have seal issue anymore. The comparison is between the earbuds for the blackberry (not apple buds) and the EX. While the EX may sound "technically" right, I just keeps going back to using the earbuds. I tried putting the EX and buds back and forth over and again comparing the same tracks. I am just unable to tell the EX is a better one. This is just my personal experience.