the sony are so light, no real complaints on their fit. the momentum 3 are pretty big but surprisingly comfortable. i had vmoda before, those were heavy and had quite a bit of pressure. compared to those the momentum feel great. i dont feel any pressure and the ear cups are so soft. they feel less secure than the sony though.

i was worried about the adjustment mechanism as some people said theirs were loose and wouldnt stay as positioned. my pair dont have that issue, you need reasonable force to adjust them and they stay as positioned.

if you want something that doesnt stand out and is comfortable the sony are definitely a good choice. they didnt quite have the sound i was after, at least not without the noise cancelling on. the momentum sound pretty much the same with noise cancelling on or off. the noise cancelling is not as good as sony though.