My first car was a turbo 1915 vw. Hauled ass, and was a lot of fun, the second had a 3.5 honda. Loved that car, those motors scream, and make right under 300 hp when set up correctly, but, bang for the buck, ecotec all the way. I have 2 friends with ecotec, they both absolutely love them. And they are dirt cheap. Cheaper then a Subi, and parts can be found almost anywhere. Aftermarket support is strong as well. I know the subi has more potential in the long run, bit if it were me, I'd keep it simple and cheap. Pick up an ecotec, drop it in, get a pre tuned ecu, and pre made harness and be done with it. Either way you go, it's going to be an upgrade from the vw..