I had the opposite happen to me. Had my 335i, girlfriend got a 128i Sport Package 6spd, I would drive it from time to time and had a blast in it. On the weekends if I drove it a lot the 335 would feel big a bloated when I got back in it. The power in the 335 was nice, but around town the power and response of the 128i was great.
Anyways I liked the 128 so much that I decided to go all out on the sport side and got the Z4M. Of course we don't have to deal with any of that snow stuff here.