All in left circle means you're guaranteed that all your squads will run at least part of the left side circles. All in top tent means that all your squads have two chances to at least enter the the right side circles, but also that each squad has a 25% chance not to enter any farming circle at all, which in turn limits how often your other squads can make rounds in their respective circles.

So left side has a slightly higher minimal reward, right side has a way higher potential. But it doesn't really feel like that potential plays out well. Especially not when you get all your squads taking the beeline to the pole without entering a farming circle at all..