AbbVie (NYSE: ABBV) ranks as one of the biggest pharmaceutical stocks on the market. But it's still a lot smaller than Merck (NYSE: MRK). Bigger has proven to be better this year, with AbbVie's stock performance trailing well behind Merck's.
But which of these pharma stocks is the better pick for long-term investors looking ahead? Here's how AbbVie and Merck compare on several key fronts.
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Source Fool.com