which is the best out of these notebooks?

[exionn]

here are the links
http://www.egprices.com/en/product/hp-pavilion-15-n013se-notebook-pc-hitech-stores
http://www.egprices.com/en/product/dell-inspiron-15r-3537-i5-4-500-r8670-notebook-pc-collection
http://www.egprices.com/en/product/hp-pavilion-g6-2275se-notebook-pc-egypt-laptop
http://www.egprices.com/en/product/dell-inspiron-15r-n3521-i5-4-500-radeon-ubuntu-notebook-pc-egypt-laptop
http://www.egprices.com/en/product/dell-inspiron-15r-n3521-i5-4-500-w7-notebook-pc-hitech-stores

i'd also like to know if there is a laptop in the same price range (500-550$) which is superior to these

 

[Bolin]

The dell inspiron 15R 3537 is your best bet (2nd link)

 

[velo3100]

Dell Inspiron 15R 3537 wins which is the 2nd link