Slam-chasing Irish the hammer of the Scots?
So the big question. Will the Irish do a job on Scotland at Murrayfield and set up another Grand Slam attempt?
Or will the green army be drowning their sorrows in the bars of Edinburgh's Rose Street come Saturday night?
There is a general perception that Ireland have blown all manner of Grand Slam opportunities, in the great English tradition, over the last decade.
But while they have only lost one match, and finished runners-up, in five of the nine seasons (2001, 2003, 2004, 2006, 2007) since the Five Nations became Six, four of those years have come to be seen as lost opportunities in hindsight.
Only once have Ireland arrived at the last game of a Championship with four wins under their belt, and on that occasion - in 2003 - they were comprehensively thumped by England in Dublin.
Which serves as a timely reminder, as their legendary former captain Willie John McBride pointed out on Friday, that all Grand Slam talk is redundant until Saturday night anyway.
Failure to win at Murrayfield, and the sense of anti-climax going to Cardiff for the tournament finale next week will be huge, as it was in 2005, despite the fact they could, as four years ago, still win the title.
Edinburgh should not hold any fears for this group of Irish players, who put a dismal 18-year Irish losing sequence in the Scottish capital to bed in 2003.
Sure, they lost there in a World Cup warm-up match two years ago, but they haven't done so in the Six Nations since 2001, a match played in late September when the tournament was disrupted by a foot-and-mouth outbreak.
These Irish players seem relaxed about the mounting Grand Slam hype heaped upon them by an expectant nation.
Word is legendary folk singer Christy Moore joined the squad for a private concert this week at their base overlooking Killiney Bay in south Dublin, and joker-in-chief Donncha O'Callaghan joined the 63-year-old on stage for a duet.
But any thoughts of a complacent Irish side turning up at Murrayfield seem highly unlikely.
If coach Declan Kidney has worked his usual motivational magic, Ireland will run out convinced they are about to take on the All Blacks.
"Declan's big thing is to always build up the opposition, you know," explains Paul O'Connell. "I think it is great for us, it stops you getting ahead of yourself all the time.
"I think if we can play to the best of our ability this weekend, we can win, but we will be very wary. No team that comes under Declan will ever go into a game over-confident but as players, we need to think, and we do feel, that if we put in an 80-minute performance, we can beat teams and beat them well."
This is also a very important game for Scotland, lest we forget. Rumours north of the border suggest the Scottish Rugby Union demands two wins a year in the Six Nations, and that Frank Hadden's job will again come under scrutiny if he fails to deliver that minimum requirement for a second year in a row.
The Scots' last game is at Twickenham, where they have not won for 26 years, so Saturday represents their best hope of securing that potentially coach-saving second win.
As for Hadden's opposite number, Kidney could be on his way to emulating what Warren Gatland did with Wales last year, and winning the Six Nations at his first attempt.
Gatland will have something to say about that in Cardiff on Saturday week, but there are other similarities developing.
Like Gatland, Kidney - after retaining the same side for three games in a row - has not been afraid to change a winning team this week, something O'Connell admits came as a shock.
"It's the first time it has happened in my time with Ireland," he notes. "But I think it is a good thing. The guys coming into the side are very hungry, and the ones who have dropped to the bench are probably going to be hungrier when they come on, so it gives us a great edge. It makes the players realise that your next game could be your last. It is a good mindset for us."
So very much the old 'one-game-at-a-time' mantra then, but a quiet confidence they will get the job done.
For what it's worth, I think they'll do it by about eight to 10 points. Any further offers on that?