Hah! I am quite fond of her, but if you can't enjoy it why have it? It's not like I'd be doing irreparable damage... arm swaps are quick and painless. I bricklinked the torso this morning so I'll let you know how it goes. In the meantime, I took a picture of all 3 so you can see (Decool on left, Lego in the middle, SY on the right and Lois, since someone else mentioned possibly using her hair.) Decool is much closer color wise... it's just a hair off of the Lego one. The SY version is a noticeably darker/duller shade so you might be able to tell the difference with the arms. That being said, SY did a really good print on the legs. My biggest gripe though is that their head is only single sided (and not the cool side!) Then again, the pronounced dot in the center of the Decool head has always driven me crazy too!
I've had my eye on that Ariel hair as well. Seems like it should be useful somewhere but I just can't put my finger on it.
On another note - they had Lois parts in the bin? I was under the impression they weren't allowed to put licenced parts in there. I've certainly never seen any flesh colored ones at the Lego store here!