Can't decide if you want a wired or wireless pair of headphones, or one with active noise cancellation or without? If you've got the cash, you can have it all with the Sennheiser MM 550-X (£350), an extremely well designed set that covers practically every situation you'd ever encounter.
Top sound quality in wireless mode; Smartly designed controls; Very comfortable; Rugged; folding design
Very expensive; Noise cancellation affects audio quality