on new honda atv's. due to the weight of them, I wouldn;'t want a winch under 2500 lbs, and with a 2500 lb winch, I would be carrying a snatch block with me, as pending HOW you stick the atv, some extra pulling power MIGHT be needed
general rule of thumb on winches is you want a winch capable of pulling TWICE the vehicles weight with ALL your gear in/on it, including you
SO< take a 600 plus ATV, add gear and rider /passenger ??
and you can see the weight of things rises , dd in ATv's can get into places where getting stuck can be STUCK STUCK! and resistance to pull it will double over just the weight of things there!
3,000-3500 gives you a lot of extra pulling power, but you also will draw more power with larger winches as well as take up more space to mount them.
I know of few folks that got stuck and cried about having TOO Much winch(well have seen some frames pulled out of things LOL, more due to being DUMB than the winches fault)
but have seen way more folks with too small a winch when buried deep , that needed help to get out, as there winch wasn't up to the task!
but a 2500 will get you out of MOST things, a snatch block should get you out of about all things you can get into, if enough line is there!
they sell very NICE ATV winch kits at Tractor Supply Company chain stores, at HALF the costs of WARM 's atv kit, I highly recommend having one and learning SAFELY how to use it and the winch!