Its all depends on what you want from the car.
Supercharger
Pros- Easier to install, costs less, less moving parts, more power throughout the entire wideband.
Cons- Has a set amount of power that it can make
Turbocharger
Pros- Would have more power than the supercharger, tons of potential to upgrade even further down the road, makes huge amounts of torque in the higher rpms.
Cons- More parts, more expensive, turbolag.
Basically, if you want your car to be faster in a straight line, go for the turbo. If you want it to be more powerful but want to keep it fun in the curves as well go with the supercharger.