Coolest thing I've seen is a guy wielded a female hitch in between the frame rails in the front. and then put the winch on a plate that was wielded to a male hitch part. That way the winch could come off and go on very easily.
That would be the best way to do it, so you don't have the extra weight all of the time. For some of the stuff I ride, I really need to get one. I've even thought of biulding a bumper, like Warn has for every quad but a warrior.
i used a harbor freight 3k wireless winch and fabbed up a protective cage around it along with a receiver mount. took the better part of a weekend taking my time but it came out pretty good and i use it all the time in the summer when i go mudding with my warrior. the receiver breaks down small enough that its possible to strap it to the grab bar when not in use so it dosent make the front end feel super heavy in corners. total setup including the winch and metal cost about $100.