I acknowledge that it is 2 different product I simply feel that the Alienware design idea (not necessarily the "implementation" since as you yourself have mentioned, there are limitations like being only PCIe x4 as opposed to the x16 on the Shadow) feels like a better approach.
Why do I feel that although they are different product yet they are worth comparing is because their use case is similar, i.e. a light laptop you bring around, and plug into a dock when on the desk.
i.e. what im trying to say is the dock for the MSI shadow would be better if it was implemented in a manner that still allowed you to use the laptop's keyboard and display without having to buy external ones. The point of my argument was never about comparing who has the better graphics performance or who has the lighter weight.
Personally I think MSI docking looks not good, too, they should remove the speaker and even the HDD, no use to pack all stuff together
But I think MSI GS30 really provide a different thinking.
All 13"~14" laptop with discrete graphic is heavy and can't compare with ultrabook, AW13, RAZER BLADE, AFTERSHOCK XG-13 all around 2KG, it's not as compact and ligh weight as a ultrabook at all, but many end users seldom gaming out side, that's the point.
MSI want to create a real thin and light laptop but still give you a chance to play really intensive game, it's quite like a 2-in-1 tablet concept : A tablet + docking = notebook, a GS30 ultrabook + docking = mini desktop
Which by the way, I think another good thing besides performance about GS30 docking is you could connect all cables on the docking, so when you came home, you dont need to plug everything on the laptop, it's really a mess that all cables on the desk and you need to plug-in, plug-out, plug-in, plug-out every day...
Anyway, I won't buy GS30 because I don't have the needs to carry the notebook around all day, but I still think it's too unique to compare with AW13, I dont think they're counterpart of each other, I will group AW13, RAZER BLADE, MSI GS60, XG-13 into one group and GS30 more close to SONY VAIO Z (if anyone here remember this laptop, you will know what I mean)