Dell XPS 15z or Envy 14" beats, OR Envy 15" (late 2011)?

Been looking for a new laptop and my favorite for a while has been the Hp Envy beats 14".



I can now get the Beats 14" for $1,599, or the NEW envy 15" for $1,799 on the HP site.





My question is, for the same price, would you go the Dell XPS 15z, or the Hp Envy 14? OR the new Envy 15 that was released late this year? Opinions/reviews anyone?Dell XPS 15z or Envy 14" beats, OR Envy 15" (late 2011)?
Your comparing something that is meant to be light weight: Dell XPS 15z



With something that will weigh quite a bit: Envy 14" beats and Envy 15"



My tip: Get the Lenovo U400 for the best of both worlds: Style and performance.