Local neighborhood Starbucks with drive through. The drive through is always at least 10 cars deep no matter what time of the day.
I always use the app & order my drinks/food before I leave my house in the morning & by the time I get there. I park, walk right in to the pick up counter & my orders ready. Maybe 10 min total from ordering to back in my car off to work.
Even if I get there & order on my app & wait to go inside. It's faster than waiting in drive through or going to stand in line & wait.
Seriously, the app ordering is the best thing ever for quicker service.