Well, that really depends on money and usage. For example, the best sounding earphones I have heard that were open-ear portables would definitely be Koss Porta-Pros, no doubt in my mind, $30AUD headphones that are some of the most well-rounded sounding and also have a very nice frequency response range and doesn't bottom out on or deep bass or go too sharp on those high notes.
That said I am not a fan of in-ear design at all, I use my iPhone headphones but that is because I killed my last pair of Porta-Pros and don't have a short enough cable for my AKGs, in-ear ones cause me pain after extended usage, for others they may feel wonderful but I am not a fan.
Which brings me to my prefered headphones for PC/music/reference usage, my AKG K702s. They are nice feeling; very neutral, none of that boom boom bass unless I want to EQ it that way (which I don't); soft and loud; and are well made and quite flexible. Only issue I have had is I need to buy a shorter cable for them so they can be more portable. Either way they sound lovely through a good soundcard/headphone amp. Problem is that that costs money, I got this pair and my sounds card cheap, total cost: $613AUD.
As I said: money and usage.
That said I am not a fan of in-ear design at all, I use my iPhone headphones but that is because I killed my last pair of Porta-Pros and don't have a short enough cable for my AKGs, in-ear ones cause me pain after extended usage, for others they may feel wonderful but I am not a fan.
Which brings me to my prefered headphones for PC/music/reference usage, my AKG K702s. They are nice feeling; very neutral, none of that boom boom bass unless I want to EQ it that way (which I don't); soft and loud; and are well made and quite flexible. Only issue I have had is I need to buy a shorter cable for them so they can be more portable. Either way they sound lovely through a good soundcard/headphone amp. Problem is that that costs money, I got this pair and my sounds card cheap, total cost: $613AUD.
As I said: money and usage.