For serious 4x4-ing, I would, personally, take a Ford conversion over a Sprinter factory 4x4 without hesitation. From what I have seen, the factory Sprinter 4x4s that are available in the US perform well in a variety of 4x4-ing tasks. But for heavy stuff--and this is just my opinion--I perceive the Fords as stronger and more capable. My two cents, and I am strictly firing blanks here. I don't want to start a "Ford v. Sprinter" shooting war. What's good for one person is not necessarily what's good for another, and if you want a Sprinter, then by all means, get a Sprinter, and enjoy the heck out of it. There are plenty of folks who did just that, and are very happy with their choices. I'm just tossing this out there as something to consider if it is helpful.