Personal preference, I don't like any straps with metal ends.
Get 2 30 foot lengths of 3" wide strap. Loop one around the stuck vehicle so that both ends are together, between the stuck vehicle and the recovery vehicle. Thread the 2nd strap through both ends of the first strap, with both ends of the 2nd strap secured to the recovery vehicle via the shackle.
If a strap should happen to break, there won't be any metal flying towards *your* vehicle.
Like these:
http://www.truckaddons.com/Catalog/E..._towstraps.htm
Another great tool to have with your tow straps is a hi-lift jack:
http://www.hi-lift.com/
You can use it as a poor-man's winch.