I know this will offend the owners of the current WRX/STi but...
98-01 > 02-03 > 04-05 > Whatever the hell that chop represents
Subaru needs to get back to making something with those agressive square lines that made the Impreza so hot. Just because everyone else has gone to rounded "cute" looking rally cars (307, Accent, etc) doesn't mean Subaru has too as well. Hell, they're the only ones with a longitudinal or a boxer motor, why should their car look like everyone elses? Subaru used to mean "off the beaten path" or "quirky"... keep that image!
And remember "quirky" != "retarded".
Subaru... let this be your inspiration: