In the past 6 months, I've had two minivans. 1) Kia Sedona. 2) Chrysler T&C.
The T&C was higher trimmed and drove/rode MUCH nicer and returned great gas mileage. I was a bit bummed as I rented an SUV (I think Rav4) and this is what I got. The HLE in FLL said it was the only car they had and that it was an upgrade. I argued otherwise as I cruised around SoBe in my teal green T&C.
I felt the T&C was slightly larger, but it was just my perception. Both are full sized minivans so chances are if your stuff would fit in any minivan, it'd also fit in a Sedona or T&C.