As for which super zoom, the Tamron 18-270 VC seems to be the best of the bunch.
EDIT: The 18-270 VC weighs almost the same as the Sigma 17-70, it is also the lightest super zoom.
Well, I asked her about this weight question and she said she wants something that won't be cumbersome for me in my backpack (-.-)
Weight really isn't a priority for us. It's mainly more of a convenience for when we go backpacking this summer. She wants to pick up any shots that I miss. It's kind of like having a backup photographer. I'll be packing an UWA and a TELE (2 zooms).
What range is included in your "does it all"? As you doubtless know, no superzoom lens goes really wide, and the longest zooms don't go wide at all (barring point-and-shoots such as the Canon sx50). And what does "best quality" mean? (If she likes low light photography, aps-c + superzoom = inferior quality.) What's more, if she "hates the gear", she should see how such a lens feels when attached to that little camera - it might be quite unbalanced and unpleasant to use....
But are you sure she wants a dslr at all? If she doesn't need to zoom in terribly far, a Sony RX100 might make more sense - near-dslr quality, tiny, no lenses to change and easy to use (if you like handling point-and-shoots, that is). Or, if her dislike of the gear relates mainly to size and weight, what about micro 4/3, where the cameras and lenses are all much smaller and lighter than dslr gear?
I've tried to tell her that the Sony RX100 will be fine for her use but she's been accustomed to using DSLRs after I've let her play with mine. It's more of a personal preference for her. Although her hands are tiny and cute, she loves feeling in full control.
I'm bringing my S100 if she needs it haha. The Sony NEX C3 is something that she's looking at too. Thanks for the heads up
For sheer quality, the EF-S 15-85. It's a much better lens than the 17-85, as well as being significantly wider, and is of L quality. The 15mm at the wide end is more useful in many ways than the loss of length as the better IQ allows you to crop. Also, its size is suitable for the small camera
That Canon EF-s 15-85mm is actually a good choice, but she wants to see if theres any other choices before she pops $700 for a lens. haha