I'm sure people will disgree w/my conclusion but I think I'm going to go for 1 inch nylon rope w/a breaking strength of ~25k lbs. I'll splice loops into each end. It seems to have similar stretch properties to nylon snatch straps and I like it better, because it is rope. I have more confidence in my ability to maniuplate rope as needed than webbing.
I'll keep my Dyneema for length and slow, no jerk, pulls, and because I love it.
Shackles I have to look at. I believe my front point is actually referred to as a "recovery point" in my manual, but I'll check.
I have a hitch in the back that I use for rear hookups.