Remember 6 speeds on the Evo's are actually the weaker box. 5 > 6 in evo world.
Insuring an import 8MR can be an issue if you use mainstream insurers. Whereas a 9 being Aus delivered makes it a lot easier.
As mentioned 9 has Mivec out of the box.
As for which is faster... Stock for stock there wouldn't be much in a 05STi vs 8MR/9. Advantage for the Evo is they are a twin scroll setup from factory and have FMIC for easier power upgrades.
If I didn't have my GC8 project, I'd have a 05 STi.
Or a 2008 Evo X 5 speed...
