I like the 3.6 over the 2.0.
Yes, the 2.0 is zippy like DMG said, but that's only if it has the E-torque. The problem I see with the 2.0 is they sound like sewing machines once they hit 40K or so and sound like they're going to fall apart.
2.0 has turbo issues, I know a few that have replaced...