Hi there Barbara,
I am assuming you are looking for the bus pickup at Animal Kingdom Park? If so, the bus pickup is just a short walk from park exit. You just head straight out and then follow the sidewalk a bit to the right and you'll see the bus corrals. From here, it's about a 3 minute bus ride over to Disney's Animal Kingdom Lodge and about 15-20 minutes to Disney's Art of Animation Resort.
If you are asking about bus pickup at Disney's Animal Kingdom Lodge, the buses pick up just outside of the Jambo house entrance... just steps away and they will transport you directly to Animal Kingdom Park.
You have chosen two wonderful resorts, each with amazing draws and perks. I have had the privilege of staying at both. I'd have to say Animal Kingdom Lodge is probably my first choice of the two, and I especially recommend the Savanna view rooms. You will literally have giraffes trying to peek in your window. It's just like being at an African Safari camp and there are so many fun activities taking place around the clock. Did I mention the dining? You have several options to choose from including my favorites,
Sanaa and
Jiko, The Cooking Place.
Hope this helps you make a decision. Please let me know if I can answer any additional questions, Barbara!
-Amanda F.