Ok, made second post for organizational reasons
UA Reasoning- I'm trying to play off of Costa Rica's biodiversity and lack of a military, but the city strength is improved mainly so they don't get wiped out.
UU Reasoning- It's supposed to be able to cope with the presumably prevalent jungle tiles, and serve mainly as a late-game defensive force.
UB Reasoning- Again, playing off of biodiversity and ecotourism.
AI Reasoning- Make Gandhi look like a warmonger. Make everyone else look like traitors. Make it small, and make sure the AI doesn't touch jungle tiles.
Start Preferences: Forgot this above, but prefer jungle and hills (and river?), and avoid tundra, snow, and maybe forest. Basically, force them to the tropics of a map.
What's missing?