For near unlimited duty cycle the hydraulics is the way to go, if your motor is running!
But if your trail rides include water crossing, and there's a chance of swamping your rig = having to winch your ride out of a "puddle" , the electric is the only way to go (no motor = no hydraulics) . . then there's only one name WARN.
The Mile Marker also sells a cheap electric, same as the "no - names" in some of the tool catalogs. I had also gotten a mailing for a Chinese group, doing direct sales. . same winch. . mass made in China and private labeled. . not the one to buy.
Then a winch roung up / review in one of the 4x4 magazine, pointed out the same conclusion I came to.
MM knows there's an electric winch market out there, and decided to have an offering for it. . but it's a shame to dilute their name with a such an offering.