So which headphones make you forget about the detail and quality and just make you have FUN!
Ear Buds that come with the HTC ONE; not the most technical but so fun for EDM and modern.
LCD-2 and Cardas 5813 ( I know they're iems, but thought it was worth mentioning them here; can read my Nook while powering the Cardas with my 901-- too distracting!!!) I listen to acoustic jazz, but also Zappa, Slipknot, etc... prog and jazz!
would love to hear recommendations about taking it to the next level... and hearing other people's answers to this excellent question