It's a cliche that's trotted out annually, but this year's tournament promises to be the closest yet. Sometimes though, cliches are based on fact and splitting the teams is no easy task.
It's especially more complicated now that bonus points come into play, which may not just affect the final table, but the tactics and psychology along the way.
So, how will the teams perform?
Can England capture back-to-back titles? Will Ireland spoil their party? Are Wales as bad as the public think? Are Scotland competitive once again? Have France improved or is it just that infamous French inconsistency? Can Italy spring a surprise and stun one of their counterparts?
Choose a nation below to take a look at how they are shaping up ahead of the tournament.