I have a somewhat similar situation. There are three routes: A, B, and C from my home to work. A has a lot of intersections, which would mean more time spent in stops. It also has slower moving traffic due to narrower roads. B also has lots of intersections, but wider roads. Between A and B, depending on your luck, one of the routes might be faster.

C has very few intersections. But it has a 1 km stretch which takes 25 mins to cross if traffic is bad. Google maps always shows C to be the fastest. But local knowledge will tell you either A or B will be faster at peak traffic times.