On Sky Sport NZ's The Breakdown, Muliaina said he feels that the All Blacks victory in the decider will be against Ireland. He predicted Ireland to top their group, which also features South Africa, Scotland, Tonga and Romania and then beat hosts France in the quarter-finals.
In what would be Ireland's first ever Rugby World Cup semi-final, Muliaina selected them to beat Australia before losing to New Zealand in the final.
Wilson thinks Ireland will have a far less productive tournament, and will once again exit at the quarter-final stage.
"Ireland, I think, are going to top their pool. South African fans don't like me now!" he said.
"They are going to take on New Zealand [in the quarter-finals] because I think it's going to be tough for the All Blacks to beat France in round one, so they are going to be runners-up [in their group].
"Who's going to win [between the All Blacks and Ireland]? The All Blacks. They are motivated in quarter-finals against some teams that have beaten them in the past. Ireland are that side, and they can't wait to do it."
Host Rikki Swannell predicted that Ireland will lose to New Zealand in the quarter-finals but that the All Blacks will be defeated by France in the final.
Ireland's Rugby World Cup campaign gets underway on September 9th when Andy Farrell's side face Romania in Bordeaux. They then play Tonga in Nantes on September 16th, South Africa in Paris on September 23rd, and Scotland, also in Paris, on October 7th.