In something of a dynasty shift, Walgreens held onto Media Monitors’ top spot this week with 48,150 radio ads nationwide. Heavyweight advertiser GEICO retained second spot with 33,931 ads and Burger King leapt from the 15 spot all the way to number 3 with 33,874. Fourth was TurboTax (29,782) followed by Jackson Hewitt in 5th position (28,961). Rounding out the Top 10 were iHeartRadio, ProFlowers, Jared the Galleria of Jewelry, McDonald’s, and MetroPCS. Perennial titan The Home Depot from 7th position all the way to number 50.