the only good WRX is the STi (besides the 2.5 rs)

the AWD of these cars is good, but even with turbo work you're only running with a 2.1 liter engine ( i believe)

also the STi has a reinforced block that will allow for higher boost than a stock WRX block.

the type-s on the other hand doesnt have AWD, but it is a good car, esspecially the new 05's.

it's really up to you, drive them both, dont be afriad to test drive them and dont be afraid to get on the throttle