We have a Ford Freestar with 2nd row bench and a Ford Windstar with 2nd row captains chairs. No idea how they compare to the choices you are looking at, but I can tell you the likes and dislikes with ours.
The bench is good for the kids when they hand stuff to each other and miss, it falls between the car seats and not to the floor. Easier for us to get. It is easier to access the back seat with the 2 chairs. But not impossible with the bench because it is slightly offset. Installing carseats is pretty much equal in both. I did like that for a trip with a 3rd adult that we could take out one captains chair, install ffing DD in the back with the 3rd adult and that made access even easier for the other person.