Two Reo Mini 18490's - both get about 50% of my time in a given day:
1) copper vein with a brass reomizer 2 on top, 0.65 ohm not-quite-micro coil and cotton wick for my fruity and sweet flavors
2) black wrinkle / hammertone silver door with a standard reomizer 2 on top, 0.65 ohm micro coil and cotton wick for my naturally extracted tobaccos
(I tend not to exceed 6mg/ml in my liquids often)