From my experience the SMG I in E46 M3 was a dog in automatic mode. But in manual it was great. The SMG II that I drove many times in M5 was much better in automatic mode and even better in manual mode. But DCT seems to be even more smoother and faster then the SMG II.
At the end of the day if I did not have to worry about the wifey......6-speed all the way.
Originally Posted by captainaudio
I never drove an SMG so I will defer to you since you have experience with it, FWIW, when I went to the BMW MPower Tour earlier this year during the presentation before we drove the M Cars someome asked how the SMG compared to the SMG. The answer was "The SMG was crap". I take this with a grain of salt as a friend of mine recently purchased an E46 M3 with SMG and thinks that it is great.