"I've had many occasions where we've banged heads."
He said he still wanted to be a member of the society as he still believed in the principal aim of democracy. "I'm not going to relent on that at all."
He said he had backed off from the committee over the last couple of months but a story in the National Business Review last week, which he said was instigated by Mr Macpherson, was the final straw.
"Academics have a different view of how the world works. It was a clash of personalities and ideologies."
Mr Macpherson said he couldn't comment on Mr McVicker's resignation.
"He's not yet contacted the committee," he said.
Four councillors - Mr Kent, Mr McVicker, Peter Bentley and Glenys Searancke - are members of the society. Mrs Searancke is the chairwoman.
Rotorua Lakes Council chief executive Geoff Williams said they would not be excluded from voting when the council voted on the Te Arawa Partnership Proposal on May 26, but they needed to make it clear they did so with an open mind.
"The risk for council is that a disaffected party, based on the decision, may choose to challenge that decision."