CHONGQING, CHINA - APRIL 20: In this photo illustration, the Merck logo is displayed on a smartphone ... More screen, with the company's green-themed branding visible in the background, on April 20, 2025, in Chongqing, China. (Photo by Cheng Xin/Getty Images)Getty ImagesWhy would you consider buying Johnson & Johnson stock (NYSE:JNJ) at 17 times its trailing earnings when Merck stock (NYSE: MRK) trades at around 13 times? After all, Merck has nearly 10% average revenue growth compared to J&J’s modest 4%, an ...