I have Electric winch, brand is Powerwinch. I wouldn't go back to a manual winch.
Pulls the 20ft Cruise Craft no problem. No mucking around connecting up to battery atc, if you do it right. I have the plug in the rear of the car. Just open the door, pull it out & plug it in the winch. Takes no longer than having to get the winch handle out.
Not all that noisey, I don't reckon.
To let the boat go, simply back the clutch off & unhook.
Even has synthetic rope on it, so no more mucking around with cable.
Takes about 30 sec longer than a manual winch I reckon.
No more huffing & puffing