This is a fun list - unless you happen to be one of the authors with a knife in your back. By the way, I enjoy Solzhenitsyn (and Vidal), but this comment is a keeper.
The 50 best author vs. author put-downs of all time
33. Alexander Solzhenitsyn, according to Gore Vidal (1980)
He is a bad novelist and a fool. The combination usually makes for great popularity in the US.