I've been 4x4ing for along time and i agree that a winch is very useful....the question is useful for what? weekend 4x4ing is a lot different than overland global expedition. In an overland expedition you need to keep weight to a minimum, have absolute reliabile equiptment, and absolutely verisitile equiptment. I see many rigs with ARB bumpers and big Warn winches, but when i ask about the use of the winch, it seems to be pretty much useless for self recovery. Many instances of winch broken, shorting out, battery dying, want to move vehicle backwards not forwards, etc. Then there is the massive weight of the ARB bumper and the winch, both of which contribute very largely to the front wheels sinking into the terrian in the first place.
What is the solution? I don't know, but i do know that based on my experiences and my observations of fellow overlanders that having a hi-lift, some maxtrax, a kinetic rope, and a tirfor is the best solution for me. I like the complete durability of this setup and the complete flexibility of it. When i am stuck 300kms from the nearest vehicle in the treeless antiplano, i want to have equiptment that is guarenteed to work and work under any conditions.