I dislike the current emphasis on hard seats (and this applies to most other brands as well- Toyotas and Hondas are the worst). Enthusiast magazines can rave all they want about great support, etc, but the softer seats in friend's '92 Caravan are more comfortable than these in my 2013.
I have an SXT model, which is sort of mid level in Grand Caravans, and it does have a power seat. However, that is an OPTION, and it should be standard above the SE model.
see full Dodge Grand Caravan review
What Our Members Are Saying about the Seat Room and Comfort of the 2010 Nissan Quest
2010 Nissan Quest Seat Room and Comfort: Pros
Year
Body/Powertrain
Comment
2011
4dr Minivan, ext. 260-horsepower 3.5L V6 CVT FWD
The seats are deeply upholstered and have generous side bolsters. Beneath the deep cushions there seems to be a well-designed form that bodes well for long trips.
see full Nissan Quest review