Didn't read the bottom of this thread but, I learned all I know about computers by just using google, mainly messing around with *nix and always wanting to get something new to work and failing so i would learn stuff while i tried to get it to work...
clear up your english, mate... anyway... as Xelink said, benchmarks are a must. Also, personal preference goes into it as well.. Some like ASUS while others would choose DFI...