As already mentioned...it is likely best to try rear chains and determine later if you want front chains. I use modified DUO's on the rear and light (old truck chains?) 2-link ladders on the front. I could get by with rear-only chains(and did for the first year) but front chains help steering even when not using 4WD. I don't sense the front chains cause harmful stress while blowing snow, but some will disagree. I don't use 4WD for road travelling or easy sections but most of my actual clearing does require 4WD. I believe a key is to accelerate smoothly and avoid wheel slippage as much as practical.
V-bars will demand more care than regular chains to avoid damage to pavement or concrete. My fronts are v-bars but so worn that they don't damage the pavement. I imagine v-bars are much more effective on ice and hard-packed snow.
Chains greatly improve traction in ice and snow, especially with R4(as opposed to R1) tires.