FWIW I got some AKG K-44s for tracking and they really are crappy sounding headphones. Terrifically comfortable. No high end, flubby low-mid, sound kind of like you're listening through a toilet-paper-tube. For tracking they are ok, though, since they isolate pretty well and keep the click track from bleeding into the mics. I need to open them up and see if I can pack the cups with foam or something and clean up that lower mid.
I love my Radio Shack Nova 71's. $18. How can you go wrong? They sound terrific. My favorite for sound. They are uncomfortable though. I wish I had 10 pairs of these. The stink for isolation, you can hear the click track bleeding.
I have had a pair of Sony 7506's for about 13 years. They have a ton of top end, a little hyped. Still for mic placement in a home studio on bright instruments such as drum kit or acoustic guitar, they're hard to beat. They have so much bottom end dynamic range that every rough mix I make using them comes off with about 10x as much bottom end as can be handled by any loudspeaker. You easily get fooled into turning these up too loud and blowing your ears for the day, because they don't distort or sound mean at all when you crank them.
Gotta try some Nova 67's.
I agree about Grado headphones, they are wonderful for listening, euphonic, and totally unusable for finding anything wrong with something. I'd think for editing they'd be killer. Unfatiguing and pleasant. Or just for listening to CDs on my laptop.