Figured I'd add my $.02 in since I'm in the same boat. I've been trying a bunch, some comfortable with glasses, some not.
Good:
Beyerdynamic MMX 300 I wear these for hours at a time and they remain comfortable. I'd assume the 770s would behave similarly.
Shure 940 A lot of people seem to have problems with the headband providing too much pressure, they worked great for me but didn't have enough bass
AKG K181 dj Wonderfully comfortable and portable, the sound quality of the amperiors killed them for me
Grados with L-cush pads
V-moda m100. Didn't try them for long, but they seemed to be comfortable with glasses.
Bad:
Sennheiser amperiors. Loved the sound. After about 20 minutes they became uncomfortable due to a pinching in my left ear between the pad and my glasses.
Sennheiser HD-25-ii. Same problem, though it seems like it affected me less than the amperiors or es10. It may have just been that I liked the sound so much and hadn't been into headphone long so I was willing to put up with more.
My brand new Audio Technica ES10s. I'm sad
. Just got these in the mail a week ago and experiencing the exact same problem that I had with the amperiors. Love the looks and sound, but not sure if I can handle that pinching at the top of my left ear.
I'm really starting to think I just can't do on ear headphones. I'm not happy about it as the ES10s have been something I wanted since I started with headphones and I just can't think of any closed, portable, stylish, good sounding headphones that would do the job now.