An AGR award can be redeemed by anyone in anyone's name! Not that I'm saying she would, but she could redeem an award in my name and give it to me!
It should be in your name, just in case you're asked for ID. I am a male, and I could easy pass for Dave, Bob or Sam without much of a question. However, if I presented a single ticket under the name of Sue, Sally or Dot, I think there will much more than a 90% chance of being asked for ID!
I use my Dad's points alot. To the point where he got my name authorized on his account so I can make reservations under my name with his agr number. So now the account is in his and my name.
Why?
It doesn't matter if the award comes from his account in your name or your account in his name, so what's the advantage?
Especially now that you can share points between accounts! And if there are any targeted bonuses, they would only be sent to one account! And if he and you share a sleeper, his account would get points for his rail fare and the accommodation charge, The points for your rail fare would be
LOST!