I travel a lot though. I prefer 13" and last time I looked, I found very little that supported 16GB. Also, again, with the traveling, battery life is huge.
This might also sound lame, but I also hate the badges. I saw that the XPS 15 only has the single intel badge. I'd rather have 0...it really grates me the wrong way (not just on laptops, WTF do I want "Samsung" printed in white on the bottom of my TV?)
I have the 13" XPS. The size and weight of it are really good for traveling. The battery life is not very good. I get maybe 3 hours on it in Linux. There might be some settings that need to be tweaked to get more life out of it. Also the WiFi on the device, even in Windows 8, sucks. The connection drops quite frequently and some AP it will not connect to. The computer is only a year old, so the new ones might be better now.
They're also specially controlled stickers, some with holograms, meant to suggest that the hardware inside is legit. Kind of like new NBA hats. You can remove those too.
I travel a lot though. I prefer 13" and last time I looked, I found very little that supported 16GB. Also, again, with the traveling, battery life is huge.
This might also sound lame, but I also hate the badges. I saw that the XPS 15 only has the single intel badge. I'd rather have 0...it really grates me the wrong way (not just on laptops, WTF do I want "Samsung" printed in white on the bottom of my TV?)