I prefer metal. I\'ve not painted any of the latest plastics, so I can\'t say anything about them, but metals always have finer sculpts. Fingers are better contoured, and faces have finer features. This means that the paint job has a better chance of looking less chunky because the miniature is less chunky.
Mould lines... ah, how we all hate mould lines. A poorly cast metal mini is the worse of the two, but plastics always seem to have the worst casts. And somehow, I find a plastic mini more difficult to clean, mainly because it\'s hard to recontour the surface with a knife and files tend to leave little bits stuck to the minis.
Anyhow, metal minis just feel better in the hand.