I don't know, I think we're missing out on a key faction. The leprechauns
! The four leaf clover would be awesome, and we could get new bagpipe pieces and green minifig parts! They could combat travelers looking for their gold! And we could put a unicorn in some sort of enchanted forest set! No...? Oh, well!
Anyway, I would like to see the griffin the most with the unicorn second.
I'm thinking that it would be cool if Kingdoms could have two new factions in different colors farther down the road with such heraldry. Not sure what the colors would be. I'm thinking Purple and Yellow, but that sounds outrageous when you think about it.
But still, griffin gets my vote.