What's your budget, and whereabouts in the world are you located?
I wouldn't want to buy an Alienware myself as they're usually very much style over substance, and the "style" is questionable at best.
I picked up a Dell L702X for my girlfriend recently at a very good price, it's not a hardcore gaming laptop but it handles most games and it's very solidly built indeed. That's not a recommendation, as the L702X is older now, just to say that models within manufacturers' lineups can vary, so unless you've truly had a horrific experience with Dell, Alienware and Toshiba support or something, I wouldn't rule them out entirely.