England: 2016 -- 1st place – After the embarrassment of becoming the first host nation to be eliminated at the group stage of a World Cup, England bounced back from a disappointing 2015 by winning all five matches and securing its first Six Nations title since 2011.
England: Coach Eddie Jones – Since taking over from Stuart Lancaster after the World Cup, former Australia and Japan coach Eddie Jones has guided largely the same squad of players to 13 successive victories. His only black eye so far came on the eve of the 2017 Six Nations tournament, which he first attributed to a slip in his bathroom -- and later a training accident.
England's prospects – If England wins all five matches in this Six Nations, it will not only defend its title and achieve another "Grand Slam" -- but also beat New Zealand's world record of 18 consecutive international wins. Stuart Lancaster's final game as coach, a win over Uruguay at the World Cup, started the run.
Wales: 2016 -- 2nd place – A 25-21 defeat at Twickenham in the penultimate round last year cost Wales a chance of winning its first Six Nations since 2013, having earlier drawn 16-16 with Ireland.
Wales: Coach Rob Howley – With head coach Warren Gatland (left) leading the British and Irish Lions' 2017 tour of New Zealand, assistant Rob Howley (right) will replace him for the Six Nations -- as he did four years ago when the New Zealander took the Lions to Australia.