The Subaru WRX STI is the better choice.
1. It's a subaru, You get one of the best AWD
2.You get 305hp with the turbocharged boxer which beats evolutions 291-horsepower turbocharged
3. Gas mileage is goodat 23 highway 17 city which beats the evolutions 17 city 22 highway
3.Lasting reliability although evolution has 7 year powertrain warranty and 3 year bump to bump warranty
4. 5 star safety
5. High resale
Subaru has many features to prevent drifting some listed below
2.Comes with DCCD- Sensors monitor parameters such as wheel slippage, steering angle, throttle position and braking to help determine torque distribution and direct it to the wheels with optimum traction. DCCD also features a limited-slip helical front and Torsen® rear
3.HasVDC constantly monitors vehicle stability. It senses impending loss of control, and applies individual brakes and/or reduces engine power to help keep you on your intended path.
Subaru.com and mitsubishi.com