I agree that she should be the one to decide. Don't be "that guy" that buys a gun for his significant other without her input, only to have the gun be essentially worthless because she won't, or can't, shoot it.

With that said, I'm going to offer another revolver to consider, the Kimber K6S. Compact. Not too heavy, not too light. All accounts suggest it has a very good trigger pull. And it's available with an external hammer, though, in my opinion, SA capability in a defensive revolver is highly overrated.