I like spyderco. A lot. My old lady doesn't. At all. So I got her a pink mini grip figuring she wanted a "girly" knife. She didn't like it at all, too small and too pink. She didn't like any of the ZTs I owned, she thought they were too big and too clunky. I said for her to look around and pick one. She ended up with a blackwash 0566 and carries it everywhere. I've even tried to snag it a couple of times just to carry it. She actually gets upset. It really is a pretty impressive knife, even though it's an older model. Anyway, I wouldn't have ever guessed that she'd want an all black tactical-ish knife. She never wears black, it's always pink or white. She says the black tactical feel and look and assisted opening makes her feel a little better should she ever get attacked. She knows it's just a mental thing but she accepts it.
Anyway, if you buy her a knife without her input, make sure it's one you like because she may never end up carrying it.