Rite Aid (NYSE:RAD) and Walgreen (NASDAQ:WBA) are two of the biggest pharmacy operators in the nation, and both companies just reported first-quarter earnings that appeared to disappoint investors.

However, with baby boomers turning 65 at a pace of 10,000 per day, and millions of new customers thanks to health care reform, investors are right to wonder whether Rite Aid or Walgreen is the better buy.

In the following slideshow, I'll compare the two and share with you my thoughts on what may be in store for both companies.

Todd Campbell has no position in any stocks mentioned. Todd owns E.B. Capital Markets, LLC. E.B. Capital's clients may or may not have positions in the companies mentioned. Todd owns Gundalow Advisors, LLC. Gundalow's clients do not have positions in the companies mentioned. The Motley Fool has no position in any of the stocks mentioned. 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.