I try to get my routes to be loops, seems more like a ride than a workout.
Up to 25 miles here I do out & back routes
One guy I ride with , it's just about the workout so we do hard out & back
18 to 22 mile.

I enjoy the loops more, though the shortest one is 32 miles .

My favorite route is a 45 mile loop thru the windmills.

Your favorite route ?
Loop, or out/back