GEICO rules supreme in this week’s chart of the most digitally engaging commercials, powered by iSpot.tv. The insurance company owns three of the top 10 ads, and uses memorable, if cringeworthy, humor to spark conversation. Its first-place spot imagines what would happen if former running back Tiki Barber worked in a barber shop. At No. 8, GEICO has some fun with a cuckoo clock. And at No. 10, an undercover agent barely escapes some mobsters.