If you want top notch quality, here's my review of a couple of options in the higher price range (over £350).
In this class you get the sound of a + £20 000 hi-fi system.
Sony MDR-Z7
Closed, over ear, Impedance / Sensitivity: 70 ohm / 102 dB
Really comfortable, and really chunky bass. A bit too much for my liking, and they lack a bit in the mid range and top. Good for over-compressed pop music.
Doesn't really work well with a phone due to high impedance and low sensitivity
Oppo PM-3
Closed, over ear, Impedance / Sensitivity: 26 ohm / 102 dB
Well balanced sound. Doesn't excel at anything, and doesn't lack anything either. Works well without a headphone amp. There are more comfortable alternatives out there.
Sennheiser HD 630VB
Closed, over ear, Impedance / Sensitivity: 23 ohm / 114 dB
Really detailed sound and adjustable bass response. Works really well with phones. Also come with remote and mic. More detailed than both the Oppo and Sony, but the ear pieces are really big and a bit bulky. One of my favorites
Beyerdynamic T90
Open, over ear, Impedance / Sensitivity: 250 ohm / 102 dB
Well, these are just brilliant! Sounds like a million dollars! Fantastic clarity and attack! BUT, and it's a big but, You really need a headphone amp. to make these work. But if you have one, I don't think I've ever heard a better pair, and I've tried a lot!
My choice would be the Sennheiser. They work with any music, has a remote and mic and play well from any source.