The song decks are the most powerful decks i know at the moment.
We played in 4 players, in Anduin Nighmare, and we won with the insane score of 75.
3 players with lots of songs, threat reduction, all lore (to play love of tales)..., and no more than 25 start threat level.
And fourth player with hobbits and dunhere.
It was a walk. Really.