The following video is part of our "Motley Fool Conversations" series, in which health care editor/analyst David Williamson discusses topics across the investing world.

In today's edition, we put the three health care components of the Dow head to head to determine which is the best stock. Will it be highly diversified Johnson & Johnson, radically revamping Pfizer, or lurking big pharma member Merck? The answer may surprise you.

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David Williamson owns shares of Johnson & Johnson, Pfizer, and Dendreon. The Motley Fool owns shares of Dendreon and Johnson & Johnson. Motley Fool newsletter services recommend Johnson & Johnson and Pfizer. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.