out of those 2 choices go with neither lol. the razer is super thin but im sure gets molten hot, the alienware (at least last years model) has some massive performance issues. my buddy has an mx14 and when he first got it performance was great. key popped out and dell sent a guy to fix it (good service) then a few months later performance dropped and he cant play games like he used to. he completely re formatted the disk and reinstalled windows, set powersave settings to the max allowed, made sure programs were using the gpu and after days upon days of trying to fix it nothing.. hes still happy with it, but that would be a deal breaker for me. (he even overclocked his ram to 1866, which was stable but overheated.) it could be faulty ram, or hardrive but he spent 1400 on a laptop to have it basically break a few months later. hopefully that wouldnt happen to you, but after some research it was somewhat common for that year/make