I use the V-MODA Crossfade LP2,Audio Technica ATH-M30x,Audio Technica ATH-M40x, Audio Technica ATH-M70x, andBeyerdynamic DT-880 Pro.
LP2s for casual listening, or Panasonic ErgoFit earbuds (not bad for the price, I don't have to worry about losing them). DT-880 Pros and ATH-M70x (modded) for home producing and mixing/mastering. ATH-M40x for producing on the go. ATH-M30x for casual listening on the go.
Watchu guys using?
EDIT: For anyone looking for recommendations, I recommend anything on my list or from here:https://www.reddit.com/r/headphones/wiki/recommendations