alienware! Falcon Northwest, Voodoo, And Sager are great but I have had 3 alienwares and have had nothing but awesome experiences other wise Falcon Northwest and Sager for 15" laptops ...not a fan of voodoo anymore.
oh and I have seen some of cyberpowers adds and to me they look cheaply made. For alienware my favorite laptop m17, their best laptop-m17x but thick and heavy. alx desktop nothing gets better but if you are looking into them for a desktop I reccomend area 51 x58 but btw alienwares are pricy when customized well, but totally worth it.