This van is an amazing traveling machine. One of my climbing partners occasionally uses his for our trips, and wow, when was the last time people fought over riding in the back? Well, the second row anyway. Last spring we did a long trip that involved skiing and climbing over several locations, so we had huge duffel bags of gear plus skis. The Sienna easily held all the gear and we all rode in superb comfort. The Parkway still had snow, and the AWD was great to have.
In terms of versatility and sheer ability the AWD Sienna is the van.