I have a Warn winch that has been real good to me, I don't know if he is looking for a specific winch but Warn is right up there with the best. Warn Industries - Main Home Page
Mile Marker hydraulic winch is what I would suggest. I have burned the motor out on my electric winch, ran too long and didn't allow enough time for cooling off, sometimes you just have to learn the hard way! It gets expensive replacing motors. Mile Marker - Abused Worldwide!! Hydraulic and Electric Winches