Off The Wall vol 1 is another of those genre defining comps from the early '80s that make it difficult to pick favourites as there were so many great songs comped for the first time.
I picked Society's Children over the Del-Vetts probably only because of over-familiarity with the Del-Vetts. My other 2 picks were the Drones and Heathens.
edit - played both again and changed my vote to the Del-Vetts - sorry Mr. Genie Man.