In a stream of opinions ahead of the Ashes, Warne also criticised Alastair Cook and said the England skipper needs to be more "imaginative" to win the prestigious series starting later this month.
Ponting wrote in his book 'At the Close of Play' that he was disappointed Clarke did not contribute more when he was vice-captain, and suggested he didn't buy into the dressing room culture.
However, Warne defended his "best friend" Clarke during his conversation with the English journalists to promote Sky Sports' Ashes coverage.
"And I know he regrets and beats himself up about the fact that he - like Nasser Hussain - is the brunt of jokes whenever someone puts the opposition in, after that horrific decision at Edgbaston in 2005.
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"So I don't particularly want to be mean about Ricky because he's a good guy and tried to do the best he could. But bringing up the stuff about Pup [Clarke], maybe it was a bit of jealousy because Pup was batting so well and Ricky was at the end of his career, not really making so many runs and just hanging in there the last few years," he added.
"The best captains I played under - Mark Taylor, Allan Border - it stayed in the dressing room. No one finds out about it. That's how it should be. So to air all this in a book is pretty ordinary," he said.
Talking about England leader Alastair Cook, Warne said: "Cook can be negative, boring, not very imaginative -- and still win and be pretty happy.