Do you use two feet or one (for automatic car)? I've heard many debates
about which is safer, and I'm just curious as to what people here
think. (I personally prefer to use two feet.)

I don't see any harm in using two feet as long as you are careful not to hit the brakes and the gas pedal at the same time.
But I bet you the engineer who designed the automatic car wanted people to use ONE feet.
Why? If he/she wanted people to use two feet, then the brakes would be way on the left and not close to the gas pedal as it is. Notice why there is only a small gap between the brakes and gas pedal.
Why do it the hard way when you can just use one feet?
And people who are giving the reason 'Oh I used to drive a manual' for using two feet are just stupid. You only use the left feet for clutch, dumbass!

ghanta jasto

 

Left Foot Braking Syaytem is only used in racing cars.

Never! use both your feet, for controlling the acceleration and braking. In most sudden situations, you are more than likely to hit both the brakes and the accelerator - and we all know, where that leads to. Be safe on the road.. Energy can be fun, but energy can also have severe consequences ;).