We (me, wife, son--10 months) have to attend a family reunion in August...in The South

We'll be down there for about 4-5 days. I'm trying to decide on what type of rental vehicle to get. So far, I've narrowed it down to:
full size = Dodge Charger
SUV = Chevy Equinox
minivan = Dodge Caravan (extra $90)
The trip is for 5 days so that means 2 large pullmans for all 3 of us, one rollaboard, travel crib, stroller, Britax car seat, laptop bag and camera cases (wife is a pro photographer). It would be nice to have something that fits us 3 plus my parents for driving around town although they will have their own rental car.
Anyone have experience with these vehicles?