V-Moda M-80. I'm on Head Fi (audiophile forums), and the M-80s are some of the most highly recommended headphones around. Check out the Amazon reviews: glowing. Check out the head fi reviews:
V-MODA Crossfade M-80 Reviews
They have a great sound signature. I listen to a broad range of music: rock, alternative, post rock, classical, acoustic, drum and bass, house, progressive house, some trance, some dubstep, pop, etc. The M-80s are very versatile and do well with just about anything. The build quality is considered to be absolute top notch: top notch materials used, innovative headband design, and a running joke on Head Fi is that it's actually difficult to damage them. The style is beautiful-I personally think (and many agree) they are in the top 5 best looking headphones out right now. Metal shields on the cups (which btw are customizable-you can get custom plates from V-Moda in a few different colors, with your own design etched into them), a cool shadow finish with black/red accents, a unique hexagonal shape to the cups rather than your boring average circles. They are comfortable-light, do not clamp hard (in fact I have a small head and they hardly clamp at all). The extras you get are brilliant-they come with a unique exoskeleton carrying case that looks gorgeous just like the headphones.
I can't emphasize enough what a great deal these are-do yourself a favor and get them ASAP. They just dropped like yesterday down to around $164 on Amazon and are a steal at that price-they are normally $200 (what I got them at, which is still a great deal). They are highly portable, easily driven by phones/laptops (which I'm assuming you're a regular consumer who doesn't have high grade audio equipment-it always bothers me when people recommend headphones that are not easily driven by phones to a general consumer who doesn't have amps and whatnot).
Edit: whatever you end up doing, please do not get Beats. Beats are junk. Do not give in to pressure to get them just to be "cool" because I can assure you M-80s are headturners in public and will get you much more positive attention.