What would you think she would use her phone for, other than the obvious texting and calling I'm assuming. You think she'll watch alot of videos or browsing? Maybe a bigger screen may be nicer. She'll probably need a long lasting battery (going on the assumption of the "average" 17yr old girl).
My usual advice is to check out the phones in person, but if you don't want to hint at the fact you're getting her a phone then this could be be difficult. In terms of durability, I think the Razr line would be top notch regarding that, battery life isn't too shabby either. The best screen goes to the SG3 imo with the Nexus and Rezound a close second, only downside is the sg3 is huge imo, too wide, and I got some pretty big hands. The Rezound and any other HTC device are great, but battery life is left to be desired.
Point is each phone has it's positives and negatives, but as you know the variety on Android can't be beat. The iPhone is a solid phone as well and the 4s can be had for cheap now, though considering your daughter's track record with phones and cameras, maybe the unibody iPhone 5 may be more suitable. And I HIGHLY recommend insurance, I personally don't find it worth it, but in your case it will be.