[altrock1234]

As the title shows, I'm trying to decide between the V Moda M80s and the Bowers and Wilkins P3s.
 
These are the qualities I want my headphones to have:
 
1)  Amazing sound quality (I listen mainly to alternative rock, rock, etc.)
2)  Very high comfort level (comfortable to wear for many hours on end)
3)  Great build quality
4)  Easy to drive (I would be using the headphones straight from an ipod without an amp or EQ)
5)  Portable
6)  Features (detachable cables, carrying case, etc.)
7)  Good styling
 
Please tell me which set of headphones that I'm looking at is better based on my needs.
 
Thanks in advance,
altrock1234