Yes, 2N2222's is the winner for me as well, tried 2N3409, 2N5088, Mp38 and BC108 and the 2222's suited me best. I really like the Eq control, it goes from really dark and heavy to a skanky blown out fuzz bliss.
I built Ander's updated layout w/ gain and tried 2222's at first, but settled on 2n5089's. The original 2n3565 transistors varied widely in gains. I've read anywhere from 150-600 hFE, so I felt free to experiment.
It's a huge, heavy sound! I'm glad the gain control was figured out, as I usually have it backed off a bit to bring some pick attack in, while still being very distorted.