I've found with my current decks that my Imperial deck is better suited to my style of play than the others. I can win with all of them (I'm no Vaora), but I can win my scenarios decently and that's all that matters to me.
Looks like June is shaping up to be interesting. Here's the new ITV, one of the 20 loot cards in the new expansion.
And for those loot collectors like me, here's a link to all the loot cards in the Trading Card Game.