genclaymore
Headphoneus Supremus
Yes, I believe the GE, EL and Sylvania 6HM5 to be quite similar. Personally, I have not heard the Sylvania and EL, but others report that these and the GE are quite similar. So my general advice is go for the cheapest ones.
I end up buying the EI's just gotta wait for the seller to ships them. Since they came out cheaper, glad I did as as soon after i bought them, he raised the price by 4 dollars. so I paid $12 Right in time.