My wife is in the same boat with Rootbeer. We have about tried every Rootbeer imaginable and she still wants her AVE. I would suggest Goodejuice. I will have to look up the exact name but they have a honey flue cured that is similar, but AVE's has a stronger honey taste.
EDIT: shoot it wasn't Goodejuice. I am going to have to try and find the bottle to see who I got it from. Ok found it. It was Pinkspot. It's not exactly like Bees Knees but its in the same ball park. I struggle saying too close as Bees Knees is much stronger on the honey then any other I have found.