hafrogman
Adventurer
I vote 1.5 
I guess my thoughts fall more under 1. But I was thinking less vampires or X-Files style aliens, and more something like an extra-dimensional mish-mash. A kind of uholy union of parallel universe theory, D&D planar cosmology, Dresden Files' faerie, and anything else you want to mix in there.
I was thinking that your lizard-men/doppelgangers/goatee-wearing evil twins/whatevers represent an insidious threat. But every time they punch a portal/dimensional rift into our world, other things bleed through into our reality and cause havoc. The academy is ostensibly training us to fight off these more obvious incursions, we may not even be aware of the larger threat.
I like the variety and opportunities represented by the 4-color, and the tone set by the other option. I was thinking there's ways to combine the two.
And, as the others, I'm totally willing to bow to any strong preferences that others have.

I guess my thoughts fall more under 1. But I was thinking less vampires or X-Files style aliens, and more something like an extra-dimensional mish-mash. A kind of uholy union of parallel universe theory, D&D planar cosmology, Dresden Files' faerie, and anything else you want to mix in there.
I was thinking that your lizard-men/doppelgangers/goatee-wearing evil twins/whatevers represent an insidious threat. But every time they punch a portal/dimensional rift into our world, other things bleed through into our reality and cause havoc. The academy is ostensibly training us to fight off these more obvious incursions, we may not even be aware of the larger threat.
I like the variety and opportunities represented by the 4-color, and the tone set by the other option. I was thinking there's ways to combine the two.
And, as the others, I'm totally willing to bow to any strong preferences that others have.