While Sam Warburton, Chris Robshaw and their teams sort out rugby supremacy, it is up to you to play England-Wales top trumps in other areas of life.

For example, Sir Tom Jones clearly beats Cliff Richard in the ageing knighted crooner stakes.

But, for me, Eccles cakes and Parkin both trump Welsh cakes when it comes to baked goods.

Tell us where your nation is winning off the field on #friendlyrivalry, external on Twitter.

For more on-topic, on-field matters #bbc6nations, external is your hashtag.

The BBC Sport Facebook page, external and Google+ watsit , externalare also open for business, and you can text us on 81111.

Sir Clive Woodward
Former England coach on BBC One

"2012 was Olympic year, 2015 is World Cup year. I think Wales versus England is the biggest opening game I can recall for a Six Nations tournament. Wales come in as strong favourites but the pressure is on them. If they lose this game then they'll have a tough 2015. If England come and play, and take it to the Welsh, there could be an upset."

It is as simple question, but it there is no simple answer.

Who will win the 2015 Six Nations?

Weigh up the possibilities and pin your colours to the mast.

Our vote is up and running in the voting section of this page.

It closes at 19:45 GMT and the result will be announced on this page and on BBC1. Terms and conditions can be read here.

Get clicking.

Image source, PA

Image source, @clivewoodward

England 2003 World Cup winning coach Sir Clive Woodward:, external Roof open - biggest opening game ever Six Nations starts @BBCTwo at 7pm @BBCSport @EnglandRugby - England to win by three.

As Clive mentions, build-up from the Millennium Stadium starts on BBC Two at 19:00 GMT before switching to BBC One at 19:30 GMT. Or just click on the 'Live coverage' tab above.

Image source, Getty Images

If you live within a 10-mile radius of the Millennium Stadium and keep a window open, you will probably be able to hear 70-odd thousand Welshmen and women tell you if their team score.

For the rest of us the only place to be is on the BBC.

The build-up begins on BBC Two at 19:00 GMT, before we de-camp to BBC One at 19;30 GMT. Shane Williams, Martyn Williams, Lewis Moody, Sir Clive Woodward, Jeremy Guscott and Jonathan Davies will be among those firing their thoughts into the mix.

Meanwhile BBC Radio 5 live and BBC Radio Wales will be filling the digital airwaves with the blood and thunder from Cardiff.

You can get stuck into all of that via the links at the top of this page.

Image source, WelshRugbyUnion

"There cannot ever, ever, ever have been a bigger opening game in the Six Nations than this."

Not my words. Those of World Cup-winning coach Sir Clive Woodward.

The winner of today's game will jump-start their campaign into life. The loser may never make up the ground.

The teams are Millennium Stadium-bound.

Image source, Getty Images

Skip forward a year and a Wales team boasting 12 British and Irish Lions arrived at Twickenham as favourites against a promising, but raw, England.

Reputations and records were shredded as Stuart Lancaster's men capitalised on the visitors' errors and ran out 29-18 winners.

Image source, Getty Images

The last time England travelled to the Millennium Stadium they were high on hopes of a first Grand Slam in a decade.

They were to be badly disappointed.

Wales did not just win, they marmalised England. Warren Gatland's side romped to a record 30-3 win in front of a crowd that started loud and cranked the volume ever higher.

The first match of the 2015 Six Nations and they don't really come any bigger.

Wales v England is a bruising monster of a match, swelled by centuries of rivalry and spiced with the memories of the teams' two most recent meetings.

Kick off is a little over 90 minutes away. Revenge and the righting of wrongs will be the talk in both dressing rooms.

Image source, Getty Images

Even road tolls are worth arguing over when it comes to Wales and England.

While it is free to cross to England on the Severn Bridge, it costs a whopping £6.50 to travel in the opposite direction over to Wales.

For the Welsh argue it is conclusive proof that West is best.

The English counter that it is an act of charity to those escaping their homeland for a better life on their side of the estuary.

Imagine how it gets when it comes to rugby....