Hmmm...I suppose it depends a bit on if she's used toys before and has a preference. I think the Mia 2 is the best bet if you're not sure. Rabbits really depend on the woman, and some of us love them, some of us are still looking for one that works with our anatomy. The Key line is really new, and I have yet to read all the reviews yet, but I'd definitely take a look at them first before deciding on one.
Shes new to toys and me being a male idk that much about them. Thamks.
You'd need to know a lot more than her favorite color. Material would be the most important factor for me since I only like softer ones and no hard plastic, so that is what I'd base it off -- what material she likes.