Starbucks Starbucks has been one of the top chains among teens for years.
The restaurant industry is increasingly competitive - and tapping into the next generation is crucial for chains' survival.
Failing to capture millennials' interest has led to slumping sales and restaurant closures at sit-down chains such as Applebee's.
However, according to Piper Jaffray's biannual survey of teen preferences, some casual-dining chains may be staging a comeback. Despite millennials' adoration of quick-service chains like McDonald's, Starbucks, and Chipotle, some full-service brands are winning over their hearts - and wallets.