What's the funniest beef Bill has had in his career?

Everyone mentions Doc Rivers and Sage Steele but a sleeper is how much he hated Rick Reilly and vice versa. They were constantly throwing subtle grenades at each other, Bill was constantly leaking unflattering shit about Reilly's Celtic Shaq era to Deadspin, and apparently they had a massive in person flare up. Writers beef with each other and beef with entertainment figures all the time but it was funny seeing a younger/edgier Bill openly despise and help put an elderly sports deacon out to pasture.