I'm partial to the 3x2 round robins, with 3 games that go off at different times.
Example on NFL Sunday will do a morning, afternoon, and the night game together.
It's nice going into the night game (if the RR is still alive) somewhat in the driver's seat and can adjust or hedge based on what has happened during the day, and any line movement on the night game that has occurred.
If the last game is a moneyline fave might opt to play back the dog + the points (or on the runline in baseball) to try to win both, especially if there has been considerable line movement.