Originally Posted by JCL

Agree that there is a difference between automatics (steptronic or otherwise) and manual transmissions (with either manual or electro-hydraulic actuation). I don't agree with the second point, above. Automatic transmissions also have physical clutches which are controlled via a combination of electronics and hydraulics. No difference there, except that the auto uses wet clutches and the SMG or manual uses a dry clutch. The rest is the same in principle (planetary gearsets vs helical gears, but both are gearsets). The difference is the torque converter, nothing more.

The manual will offer a precise shifter, but that is really related to the direct tactile sensation of shifting, rather than improved vehicle control in normal street use. As a measure of progress, note that many modern automatics are getting better mileage than their manual gearbox equivalents. The shifting logic has evolved to the point that it can compensate for the efficiency loss in the torque converter (when it isn't in lock-up mode).