actually i checked newegg,but i would prefer to buy that notebook in a store,to feel that myself before buying.
i need 4+hours of battery,do asus one can hold on that long?
Then go to Best Buy and "feel" them (very important, I'm not making fun here) to decide which one you like, then buy the winner for cheaper online. Asus laptops are very well built in my opinion and often have the best price/quality/performance ratio. With all
hardware being the same between the three (unlikely): Samsung will probably give you the best build quality and aesthetics for the highest price, Asus will be right up there with build quality but the price will be lower, Dell will likely be roughly the same price as Asus but much cheaper looking/feeling.
I like to make an excel chart of the hardware in the laptops I'm deciding between to get a visual of what each offers. CPU, GPU, RAM, hard drive, screen, connectivity, price, etc etc (whatever is important to you) Then I highlight the best of each category in Green and the worst of each category in Red.
PS. I believe all of these laptops will give you roughly the same battery life.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod