Regarding the strength of lists, I'd think there are not many absolutes most is relative.
A good portion of the strength of the list, comes from the opponent's list. There are matchups that favour one list over the other.
A second bonus is familiarity. You just fight better against an army, you fought against often and just the other way round you fight better with an army you accustomed to than one you just choose for the tournament, because it's a killer list. So somebody who fought often against Necron playing against a new Necron player will have an advantage even using a supposedly weaker list. A player never having played against Necrons will be at an disadvantage - alone from being stunned by all the special rules and how they interact.
Psychology: There are lists that I don't personally like to fight against, for whatever reasons - that doesn't mean I can't beat them, but it makes it harder than it has to be. Same works for reputation of players.
Dices do not care about relative strength.
Tournaments do have their own laws.
Based on this, my bet for first place will be:
UK, Germany, Sweden or Norfinger - but no draw
