Hi everyone I have been driving my friend's wrx to help him break it in for the past month. After breaking in his car and doing a few pulls. I felt like it was necessary to write a comparison between my 11 sti and his 12 wrx. My sti has about 10k miles and his just rolled over to 1700 miles. I did not do any drag comparisons with either car and this just compares DD with some canyon driving. Also a disclaimer, this is my opinion of the two cars and are not looking to start a flamewar with anyone.
The wrx is a very good daily driver. Compared to the sti where you can feel every crack on the road. When taking corners, I canyon carve a lot, there is a noticeable amount of body roll in the wrx. Guess you can't get the best of both worlds. I also noticed that the wrx throttle was very touchy, barely tapping on it just hauls the car. The sti's throttle was not as touchy, but this is me driving in I mode, so that could be it. I did not notice any major mpg gas differences. My sti was getting about 23.8 mpg and the wrx was about 24.7 mpg. I figure this will increase as the wrx fully breaks in. The transmission was a big difference between both car's shifting. I don't know if the spt short throw kit widen the gap, but I would highly recommend it now after testing a car without it. Everyone is aware of the braking differences too, one thing I did notice is that the sti's oem pads create brake dust like no tomorrow. The wrx brake dust wasn't as bad, above average, but not as bad. So for you people that are anal about clean rims I would suggest switching new pads.
Well, wrapping this up, I really enjoyed the wrx. Power is there and it hugs the road well, if my work commute was different and I did not have to do canyon carvings almost daily. I would have picked up a wrx.