"I don't want to be nasty but let's just say Robbie Williams is no Freddie Mercury"

John Deacon's quote is a clear sign that he does not think Robbie Williams is as gifted as Freddie Mercury. He is likely referring to the truth that Freddie Mercury was a legendary singer and songwriter, while Robbie Williams is more of a pop star. By saying "I don't want to be nasty," Deacon is lionizing for Williams, but he is also making it clear that he does not think Williams is on the exact same level as Mercury. Deacon is likely trying to emphasize the fact that Mercury was an unique and skilled artist, which Williams does not rather measure up. He is also likely attempting to advise people that Mercury was an unique artist who can not be changed. Deacon's quote is a testimony to the tremendous skill and legacy of Freddie Mercury, and a reminder that no one can ever really change him.