I vote for either the "Ditech.com" schmuck or ANY of the local southern Kalifornia carpet/mattress/bigscreen/bedspread businessmen who INSIST on doing their own commercials (and some now even include their chirrens, orthodontia and all)
Speaking of the good old days and S Cal. the all time most irritating commercial: Hi folks Ralph Williams, Ralph Williams Ford in the city of Encino.......
Johnny Carson used to make fun of Ralph and all the air time he received. One night after he had finished his monologue and had just sit behind his desk Johnny said something like: "That Ralph Williams guy is just everywhere. You can't turn on the TV for more than a few minutes without seeing him. No telling where he will pop up." Just as he finished saying this his desk exploded into small pieces of wood (was a special balsa wood prop probably) and popping up from the splinters of wood stood nun other than Ralph Williams, and he just started saying without blinking an eye "Hi folks Ralph Williams, Ralph Williams Ford......." One of the funniest things, and there were many, I ever saw on the Johnny Carson Show.