Unless you found a killer deal on either of these headphones.
I would post your question in either the MP3 player forum or the Home audio and video forum, the members there may have some opinions for you.
MP3 player forum
Home audio & video forum
Which is better, Klipsch Image S4(i)s or Bose On-Ear headphones? I do not care about the price, I care more about the comfort and sound execution and quality.