A few things girl.
First off, unless you do any video editing the 12gb of the Envy will be completely wasted.
For example, my wife's PC RAM recently died so I ordered a new set, but in the mean time I took 4gb from my 8gb and put it in her system. I'm still using 4gb now and I can run BF4 on the highest possible settings as well as any other game I play (you're a WoW player, no? I just bought MoP the other day). The reason RAM is sold by the bucketload nowadays is because DDR4 is around the corner (June, to be exact) and these companies know it, so they're basically using all their stock to shift laptops, and because some people are still of the mindset that more RAM = faster PC (seriously folks, the 90s were ages ago).
Secondly, Windows 8.1 takes a bit of getting used to if you're not familiar with it. The touch screen might be a gimmick here but it'll help you familiarise yourself with the new operating system and it'll get a damn site more use than the other 6gb of RAM which you'd be "missing out on" (not really).
And last but not least, that Radeon 8550G trades blows with the Intel 4600. The selling point here is that the Radeon is made by AMD, the same company working on Mantle, which will improve the performance over time, whereas the Intel is a case of what-you-get-is-what-you-get.
For me, the Pavilion is a clear winner. If it's for gaming, then it's a no brainer really.