Vans tend to have pretty good visibility, but not compared to a single cab truck.
Loading into a van can be easier or harder depending on the goods. Larger items are easier into a truck, IMHO, since you don't have to rearrange or remove the seating, and don't have to negotiate door openings, and sometimes it's useful to get help over the sides of the bed. Lower typical height of van floors can be helpful though. Pickup beds tend to have more and better tiedown points, too.
I have a pickup and a van, and a c-max, and I would most likely give up the c-max first; especially if either or both the van and the pickup had reasonable fuel efficiency.
Loading into a van can be easier or harder depending on the goods. Larger items are easier into a truck, IMHO, since you don't have to rearrange or remove the seating, and don't have to negotiate door openings, and sometimes it's useful to get help over the sides of the bed. Lower typical height of van floors can be helpful though. Pickup beds tend to have more and better tiedown points, too.
I have a pickup and a van, and a c-max, and I would most likely give up the c-max first; especially if either or both the van and the pickup had reasonable fuel efficiency.