Depends on how much "fun factor" you want, personally I'd go for the GT but if you've got an evo to play with I guess you need to save as much £ for petrol as you can!
Nate

Turbo-Dynamics Stage2 Hybrid Turbo, Sachs Organic Clutch & Pressure Plate, Large Diamater Downpipe, Turbo-Back Milltek Exhaust (De-Cat), Allard EGR Delete, Uprated Injector Nozzles, Jabbasport Stage 2 Re-Map, 18" RS4 Alloys Wrapped in 225/40 Goodyears, 312mm Audi TT Brake Conversion, Lowered -30mm on Eibach Springs, Forge Adjustable Quick Shifters, Aluminum R32 Interior, Cruise Control, 7" JVC Double DIN DVD Unit, JVC 600W 4 Channel Amp, Aluminum Bee Sting Aerial.
223BHP @ 4000RPM - 369lb/ft Torque
Build Up Thread Here.