I have an '11 AWD Sienna and it's nice. I really wanted one ever since the "swagger wagon" commercials

and when we found out it had AWD there was no other option. I like the way it drives - doesn't feel huge, although the gas mileage sucks. And it does GREAT in the snow - though we had a mild winter for the first time in a while, and it's very low to the ground so you don't get that high SUV clearance underneath. But my kids are in heaven with all the room - I LOVE having the "isle" you get with a minivan, so on road trips if the kids need something one of the adults can easily get to the back seat. It's easier than manuvering around in an SUV.
As far as the Chrysler/Dodges go, my family was loyal to them for years and years (a family member had a car lot), and I had a LeBaron and my husband has a Dakota, and I can tell you that they start breaking down around 70,000. We had to put a transmission in BOTH of ours.