In this video, as part of the Motley Fool's "Ask a Fool" series, Fool consumer goods analyst Mark Reeth takes a question from a Fool reader, who writes: "Do you still consider McDonald's (MCD 0.99%) a core stock at this time? In light of third-quarter results posted [recently], plus the fact that McDonald's is losing market share particularly in the U.S., do you still consider this a core stock, or do you like Chipotle (CMG -0.84%) or Yum! Brands (YUM 0.94%) better?"