Op if your friend is a casual, Paly is not a bad choice. Ret paly rotation is easy, and most of all, paly is easy to survive and participate in various content. As a healer. If you have to do some difficult content in the open world, you can do the tank.
Hunters are… very good in solo playing but you have to make macros to take care of your pets, and have to wait and experience the pain of pure dps class, so maybe not that good in group content.
Hunter’s good if you can carry your friend