I recently bought a Springfield Armory Loaded Government-size 1911. I've definitely drunk the Kool-Aid on 1911's and the .45acp round and I'd love to get a smaller 1911 to carry. There is no BEST size to carry. Since most 1911 have roughly the same grip shape (though the smaller ones have a shorter grip length), I would think the only main differences would be how one feels about a long barrel. What are your thoughts about the best size for you? What do you carry now?