The number of respondents reached double figures, which I reckon is quite definitive.
Good news for Rodericks everywhere, I think. I always like it when people in sitcoms are called Graham. Imagine how many Rodericks will pitch up in them, now that we've firmly established the comedic value of the name.
In celebration, I am happy to republish The Funniest Cartoon Ever, which sparked off this debate.
Thank you to everyone who voted. Here it is . . .