When I worked for the company named after a rain forest, we had the choice of sell to cover, sell all or pay taxes without selling shares. I always chose to sell all. I would never have taken 25%-30% of my hypothetical cash compensation and bought one stock. Why would I keep my RSUs?
Now I work at a smaller company doing the same thing (cloud consulting) making the same amount all cash. I much prefer that over cash + RSUs.