I'm thinking about getting some Grado SR-60i headphones soonish.
Sennheiser PX 100-II and some skullcandy lowriders I know people say skullcandies are flimsy but I'm pretty rough with mine and they've been ok. The sennheiser are my 2nd pair I was told they were pretty much bullet proof but I had a headphone go before the 3 month extended warranty ran out I can't do the whole in ear thing they just either fall out or hurt
I'm using Sennheiser CX 300-II
I use Bang and Olufsen ear phones. I think they blow Sennheiser out of the water but not as well known.