What would be the advantages of it! The lift power is the same!
What ccs said, Traction, Traction, Traction!
I'll give you a couple of the many reasons for Loving the four wheel drive on our farm.
Right now it's Mud Season.
When we clean out the barn, (horses, alpacas, goats, and a mule), it requires multiple trips to the manure pile. It would be impossible sometimes without four wheel drive. Then the few times a year that we turn the pile over to help with the composting, it allows me to push deeper into the pile to get Full Buckets to reduce the number of buckets that I'm moving. It's quite a pile. When people start complaining about the neighbors dog leaving a pile of sh!t on their lawn I put it in perspective and show them my pile on Google Earth, (not kidding!).
When I'm moving the gravel pile the four wheel drive allows me to back out of the pile with a Full Bucket without the back tires spinning.
There are a couple of spots when cutting grass where the back tires will spin when pulling the 15' bat wing mower. All I have to do is engage the four wheel drive and keep going no working it back and for get out of trouble. I don't mow in four wheel drive. Pop it in and out as necessary.
And the most important, Safety! Brakes on all four wheels if needed.
Not taking it as argumentative at all.