I think the mini-van market is split three ways:
1. Dodge Caravan Canada-Value Package. A huge seller thanks to the price.
2. Honda and Toyota: Rivals that duke it out.
3. Everyone and everything else.
One of my climbing chums has a Sienna XLE AWD, and I would compare it to a private jet for traveling. It's massive inside, easily taking us and skis and gear. Seating is awesome, comfy no matter where you're sitting. The ride is soft and comfortable, making the trip to the mountains easy. The V-6 pulls hard making climbs up passes no brainers and passing is stress free. Sadly, we don't often take his van as he has three little ones, so his missus needs it at home to haul the kids around.
If I were needing a mini-van (not so mini anymore, are they?) I'd shop for a used Sienna AWD. It uses the full time AWD system as per the Highlander (odd how the RAV uses slip/grip and Sienna uses full time) and though lacking in the ground clearance of an SUV, can still get down some pretty poor roads when needed.