Kayteg, all true but what about the service rating? Cheaper winches cannot be run for any length of time else they go into the 'one piece, no moving parts' mode which is what happened to a guy with a China Freight 12K winch at ExPo a couple years ago. He used it with a seemingly not heavy vehicle but used it too long at a time trying to free himself from the mud and it burned out. If you plan on using the winch a lot, a hydraulic winch might be preferable as they just get the oil hot and have a very long service time compared to a 12v electric.
The other thing to watch out for is the line speed. Typically, the higher the winch is rated, pound wise, the slower the drum turns. It's axiomatic that the way they get the rating is to gear down. If you use the snatch block, the line speed moves to an absolute crawl. This is also true of the amp draw. My little Warn 8274, which had the fastest line speed in the west, drew an incredible 300 amps at dead stall. That's a lot of heat. It actually took down the battery in my Jeep on a long complicated pull and a dead engine. With the TC, I keep all three group 27 batteries in series so the winch can draw on all of them if the 125 amp truck alternator cannot keep up. If you have a big electric, 12v winch, a good bet would be a truck with the 'service, rescue or ambulance' package with TWO alternators.
I've seen people, first hand, with no winch technique, use way under rated winches trying to pull things out of their range and it's always a good show. Just don't stand any where near the action. That snapping cable, if whipped enough can make a mess out of the human body. Many years ago, I read an article which included a picture of the hole in a jeep windshield where the hook, which had detached from the winchee, had come right through the window and decapitated the driver. Ugh!
jefe