I agree, I hate Windows but some of these companies are finally starting to make some very quality products. The XPS is 2.6 pounds, the Zenbook is 3.2 pounds and both are thinner than the MacBook. I'd sacrifice the .5-1.2 pounds to have a superior CPU, GPU, more RAM, a better display and I still have all the ports and a card reader just in case I every need them and I spent less money.
The lack of ports is my only complaint. I will live with it, though, and get a pseudo docking station.
I do miss the choice I had when I was a Windows user. I'm just ecstatic that Apple went all out to make this thing thin and lite. I love OS X!