Weight placement is a major factor, since it changes how the car reacts to weight shifting.
A car that weighs the same but has more weight in front will have less entry steering, the opposite of what many expect. This is due to the weight in the rear having less momentum or influence when the cars chassis unloads forward, or sideways while moving forward. Basically less pendulum effect.
The opposite happens under acceleration, the chassis can't bring the front up as much to transfer weight back, so on power, or exit steering is better with a front heavy car at the expense of rear traction.
It's always about a compromise of the two, regardless of where your motor is located. BUT, a mid motor car handles like a slightly shorter wheel base would since the weight isn't spread as far and remains inside the wheel base, which equals less inertia(pendulum effect) Great for some conditions.

There really is no right or wrong, no magic, just what works for the conditions, the drivers ability, the experience with and tuning of the vehicle.