Personally, I don't think any of them really hit it on the head. They all have their personalities and their advantages, and their drawbacks.
I have heard the Stow and Go is a love or hate feature. Some people think it is convenient if they so seatless frequently, while others (including myself) find the floor panels over the bins to be very flimsy. I would be very concerned about them breaking under normal use.
Have you looked at the all-new Kia Sedona? It has gone from an also-ran to a very compelling package in the market. Loaded with every option: $31,760. TMV after $1500 rebate: $28,662