1: England (heavily caveated & with great caution here)!
2: France
3: Ireland
4: Italy
5: Scotland
6: Wales
TBH I can see any of the top 3 winning the 6N, Ireland are not the force they once were, but they are not far off, and it would not take much to get back there. France are simply quality, especially with Dupont marshalling the team. England....well they have a team that can get the title and the slam, and it has been many a year since we have said that. But Ireland are a tough nut to crack, Scotland at Murrayfield is one heck of a task, its the Calcutta cup after all! (and one I still desperately want to win every year). France on a Saturday evening in Paris is just what the French Doctor ordered for our neighbours from across the channel, and although underwhelming in the AIs les blues still are a world class team!
This year though, I do think it will be a tournament of 2 divisions. Italy are continuing to impress and improve, and will push Scotland hard. Scotland, after the AIs are in a darker place, and it will take a lot to push into the top 3, i'm just not sure they have the depth of player to do this at present, with the bench not having much of an impact in the AIs. Wales are a slight mystery, but I think as the tournament progresses their lack of player depth, lack of power and set piece will be exposed, especially by the top 3, but Scotland and Italy have teams that can expose this as well. I also think their attacking threats will be more and more combated as other teams work them out. For Wales, just as the AIs were about beating Japan, I think this 6N's is about getting a win against Italy or Scotland. Both of them would be a good tournament return.
It will be a fascinating Championship!