In answer to the last two posts, my CR-V is Realtime 4wd. Basically it's a similar arrangement to the full time 4wd system, except it's FWD until it encounters a 3% or greater difference between the front and rear wheels rotational speed, at which point it hydraulically engages a clutch pack in the rear diff carrier that connects the prop shaft to the rear diff, and voila, 4wd.
In answer to the second question, I've only ever been "stuck" twice in my rig. Once was when I ran into soggy, deep snow high on a mountain track. In that case, there was very little to zero traction and deep, rutted, half frozen snow that blocked forward progress, but I wisely chose to turn around before I got so stuck that I couldn't go back. In that case, I believe that a winch and maxtraxx could have allowed me to get through.
The second time was at BC Overland Rally where a hill we came down on the way in to a trail run was just such a rutted soupy mud slicked mess that even a Rubicon and a twin locked, massively built 80 series couldn't climb it and had to be winched from the top. I made it a bit farther than the Rubicon, amazingly, but the traction just ran out and there was no going further. I got winched up by the same jeep that winched the other two.
I'll also add that the vast majority of places I off-road are heavily forested, so no shortage of anchors.