Any of these could be fun, but I want to pick a style that would ensure the widest variety of armies, and the least number of rats
. I like dragons, but with only a few to choose from, there would be a lot of repetition in the armies (and a lot of Greenskins). General Wars or Big Monsters would have the same problem, although definitely not as severe. Lightweight would be interesting, but it would still allow too many rats.
So in the end, I voted for HERO-scape. I think that will lead to the most diversity in army builds, and it will be a VERY different challenge than I'm used to.
And did I mention, HERO-Scape means NO RATS!