Hey Harley, I took a look at the link you provided and neither tablet is a clear winner. To me they are much of a muchness and either would fulfill my portable computing needs, though at present I'm probably leaning towards the Surface slightly more. I mean, both tablets are admirable and capable devices, but something about Surface just grabs me that bit more. However, it will be a while before I can make a purchase, and who knows, things could change between now and then.
As for the Asus being thinner and lighter than Surface, I noticed in the PCmag article that it is actually thicker and heavier when combined with the keyboard cover. However, it isn't such a big difference that it would influence my decision. For me, thinner and lighter isn't necessarily better as I have big clumsy hands and don't mind something a bit meatier to get my hands around. It was like when I was choosing my mobile phone and deciding between a thinner/lighter iPhone or the thicker/heavier Nokia Lumia 820. The Nokia felt better in my hand, like I had something to get a firm hold of... and less likly to drop. [BTW, I had no intention of buying an iPhone, just picked one up for a comparison, that's all]
I don't think GPS would be an issue for me as I no longer drive because of disability and use public transport or a taxi [when required], so what's on offer in the Surface would be more than adequate. Besides, my W8 phone has excellent GPS thanks to Nokia, so I'm not likely to ever get lost, am I.
3).NFC technology allows you to share files between devices just by putting them close together which I hear the next windows phone will have
Actually, that is a feature of the W8 phone I really like. The missus and I both have one, and we are forever exchanging things between phones to save double downloading, etc. Yeah, you just place them back to back [don't have to be touching] and voila, press the share button on one phone and the other one gets it. It's amazing stuff... and how I love new toys.