The Roush scoop is a lot lower profile, or at least gives that impression because there is a better transition from the sides to the center. Also do not try to use a 11-12 scoop on a 13-14 hood. There is enough difference that you will not get a good fit.
One thing to remember is that on some colors, there might be a slight variance due fading or run differences. I have seen enough difference on pre-painted parts to ruin the effect the owner was trying achieve. White seems to be the worse offender. I had no issues with my rear side window louvers from AM, but I have seen a few cases that made me cringe.
2013 MCA Edition-Sterling Grey
Roush body kit - Splitters/hood scoop
Whiteline suspension w/Koni shocks