We have two Quigley 4x4 vans, and use them mostly for surf fishing. Being able to store the long fishing rods inside the van without taking them apart is a real bonus.
The 1995 Chevy G20 has the 5.7 L gas engine and 3.73 gears. It pulls real well in the sand - for soft sand like in Hatteras we have to air the tires down to about 20 psi.
Since we pull a 7000 lb. travel trailer, we recently pick up a 2005 Ford E-350 with the 6.0 L diesel and 4.10 gears. A couple of weeks ago was the first time we had it on the beach in Hatteras. While not as nimble as the gasser, the Ford did just fine - never got stuck, never even had to put it in low range. Again, the tires were down to 20 psi.
The plan is to keep the Chevy for everyday use - it is already showing rust - and only use the Ford when we are traveling with the trailer .....
Same beautiful wife, same dogs, different vans!