I can see this being the closest ever Six Nations with at least 5 of the 6 teams having a chance of winning the tournament. Of course you have the pre-hyped up France, who are rightly favourites. England had a very good showing at the world cup, but we all know what happened last time England came back from a World Cup!

Scotland were the 3rd most successful at the world cup but they did have a relatively easy group. However, if they start well, they could mount a challenge.
Wales had a poor World Cup - but under a new head coach, and other coaching staff, with a good start they could go a long way, as shown in the 2005 grand slam season.
Ireland had a poor world cup, but they always mount a challenge in the 6 nations and this season will be no different.
Italy, well, an unknown really with new coaching staff and a new, fresh squad. How they will do no one can say at the moment. Let's hope they give Ireland a good match next Saturday.
Whilst my heart obviously wants Wales to win, I feel we are probably looking at another French win - but if Wales beat England next week, or even not, at Twickenham, I feel Wales can mount a challenge under Gatland. England will be interesting, very interesting to see.
MY PREDICTED TABLE:
1. France - win 4
2. Ireland - win 4
3. Wales - win 3
4. England - win 3
5. Scotland - win 1
6. Italy - win 0