okay sorry, but nevertheless, i don't think it is really worth the effort. The advantages are minimal and they both are just as 'unrefined' and rough' in my opinion.
I've driven both and it really didn't impress me. The car feels heavy and underpowered. That is why i don't step back for guys with E90 320i's. They are not driving a fast car.
haha, I got a 120i as a loaner from Forsdicks while my car was in for some work about 2 yrs back (I miss MP), and it was dog slow, I still say there was something wrong with that car, because my e46 320i felt like a jet compared to that thing.