up to you mate, everyone is different. Superchips is fine and has some good mid range torque, but dies off a bit near top end of the revs and when dyno'ed they only make a bit more than stock, about 220bhp -230bhp, (mine got 225bhp) but is very safe on the engine.
Revo on the other hand will give you a higher BHP and torque figure but may add 5 % more stress. It not all about the numbers, its what your looking for as a driver. I just wanted it to be as raw and powerful as possible (staying within stage 1).
And yeah and intake will help, bit more airflow over stock. A decent panel filter is also an ok option though.