NO WAY on using chains!
When things break & if you do this long enough you'll be around to see it & hopefully still around afterwards.
Get a GOOD tow strap I'd go to at least 15,000lbs.
Get the kind with the sown eyes in the end not the hooks, also get a couple clevis pins or D-rings that are rated as high as the tow strap you buy.
The come-a-longs are fine but you are going to find that unless you are just barely stuck they wont do the job.
Serious consider getting a Hi-Lift jack & MAKE CERTAIN your bummpers have a place suitable to use it. (Not much good on stock bumpers.) Get a piece of plywood 1/2 or 5/8 thick by a foot square this will come in very handy to use under the base of the jack in soft surfaces. The Hi-Lift can also be used as a come-a-long. Being stuck by myself I've had great luck jacking it up one corner at a time & filling in the hole under the tire with what ever I could find available, including my spare tire.
Anytime you are getting pulled out with a strap or a winch place something like an old blanket, coat, etc over it. (they make fancy bags with lead pellets for this if you want to spend the money) by having something like that on the cable or strap if something does break it will typically fall harmlessly to the ground. I've seen & done some stupid things over the years & by sheer luck not been hurt.
I'll have to look through some pictures as I think I still have the one of my buddys Bronco II with a hole in the tail gate & the chain imbedded in the back seat! Big oops funny now but learned a little about physics, stored energy & mass that day I should have learned in school.