Thanks for the comparisons guys. Overall, I value something that is fun and engaging over something completely neutral or detail oriented. They both sound to have good detail retrevial and resolution. I owned the FX700 previously, I liked it quite a bit. The only thing that kept me from loving it was the over-exaggerated bass. Although, my tastes have changed since then... I don't think it will bother me as much now.
Hmmmm... this is going to be a tough one!