Davies represented Wales 21 times in the late 1970s and early 1980s

The proposal is set to be discussed by the International Rugby Board this weekend with Hong Kong a possible venue for the match.

"It would be a great idea," Davies told BBC Sport Wales.

"A match between both hemispheres will be a good decider to where the real strength of world rugby lies."

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Wales currently lead the Six Nations with three wins from three and face Ireland a week on Saturday for the Triple Crown.

The Tri Nations starts in July with New Zealand, South Africa and Australia battling to be the best in the southern hemisphere.

It is not yet known where the match would fit into the rugby calendar, but Davies says a competitive match as opposed to "meaningless" games would help boost the game.

Davies, whose experience includes senior management positions at Cardiff RFC, BBC Sport Wales and the Sports Council for Wales, moved to Australia to promote Welsh business after deciding not to apply for the job of the Welsh Rugby Union's group chief executive in 2006.

"There has been a big debate down in Australia over the last couple of weeks about the respective strengths and merits of northern hemisphere against southern hemisphere rugby," he said.

"At the end of the day, I think a one-off Test based on the winners of northern and southern hemisphere championships is better than the circuit of autumn internationals and other games that are played which are often fairly meaningless, with meaningless teams.

"If you can have the winners of the Six Nations against the Tri Nations with full-strength sides it would be a spectacle rugby folk around the world would like to see."

WRU group chief executive Roger Lewis said a lot more discussion needed to take place before the IRB could sanction a north-south clash.

He said: "What we need to look at is how we can make the June Tests truly meaningful.

"What we have to be careful of is that we don't create anything which takes away from the World Cup and that is what is so important."