I'm not so sure if Dell could ever be better than alienware, no matter if prices are higher. Dell, is Dell. I've replaced more Dell parts at my job than any other part here. RMA's left and right, and 3 replacements so far on Dell notebook motherboards. Never had a problem like that with Alienware.
I used to own an Alienware. From my experience, with Alienware you are paying for a sleek style, a top notch warrant, good tech support(with dell it was mostly a 1 on 1 what the hell did you just say conversation), and very good hardware. Nothing generic. Their systems come with recovery cd's(at least, i think they still do...or they have their own special recovery utility). Sure they may take a little bit of time to get things to you especially when you purchase it(horror stories of months to get a notebook from them), but in the end they deliver a very applaudable PC that even my friends who built custom PC's would like to have. Since my Alienware is dead now(long fiasco with purchasing alienware from bestbuy, then bestbuy and alienware not dealing with each other, and having 5 yr warrant with bestbuy that they couldn't honor to replace my notebook...i will forever hate bestbuy...), I have gotten back into the custom PC building, but never really felt as cool as I did when I had my alienware. Plus...don't flame alienware unless you talk about someone else like...i forget...is it Falcon? Voodo? $5000 easy for a computer from them. If you have patience and money is no issue, i see nothing wrong with them. Everyone is so into the CUSTOM stuff that they forget not everyone on these forums or in the world has time to really build a computer and troubleshoot everything by themselves. Ya know?
Good luck