Pick based on looks. Everything else is close enough that it doesn't really matter. Like BStoneMega said, the only problem the Evo has is its abused. Do the same to an STi and it'll eventually turn up the same result. The '06 Evo did have a handful of nice upgrades from the previous years model. Some technical things that gives it a slightly fatter torque curve and some other goodies. In this months issue of one of the major auto magazines (don't remember which ironically..) they do an Evo vs. STI test. They come out with the STI on top, but just because its now cheaper than a new Evo.
