Which of these laptops should I buy?

[dominicoben]

I'm looking to buy an ultrabook, and these are my choices:

http://www.pcworld.co.uk/gbuk/samsung-series-5-13-3-ultrabook-silver-17056551-pdt.html
http://www.pcworld.co.uk/gbuk/asus-ux32a-r3007h-13-3-ultrabook-silver-17056524-pdt.html
http://www.pcworld.co.uk/gbuk/hp-spectre-xt-13-2100ea-13-3-ultrabook-silver-17056528-pdt.html
http://www.pcworld.co.uk/gbuk/hp-envy-4-1101ea-14-ultrabook-17056525-pdt.html
http://www.dell.com/uk/p/xps-13-l321x-mlk/pd

Which of these 5 is the best? They all cost roughly the same, and I'm stuck choosing one!

Thanks

 

[DarkSable]

The ASUS or the Samsung.

The ASUS has slightly better processing power, but the Samsung is $100 cheaper.