Q. Which car is better Polo gt or Baleno RS

Let's begin with Polo GT. it is equipped with 1.2 Turbocharged petrol motor, with 7 speed DSG. It is also comes with ABS,EBD, Hill descent control, and also weighs 100 kgs than RS. The maintainance cost for Vw is more high. Meanwhile, In Baleno RS, it can be called as entry level performance hatch with plenty of spare parts with low maintenance cost. It is upto you and your satisfaction.

Polo have it's own maintenance... its costlier than baleno rs... In terms of power both of them are good...

It depends on your spending. For safer and more features and performance, you can go for POLO GT, but be ready for spending more money for maintenance.