Tough call, 128 is also lighter then a 135
I believe the 128 has shorter gearing as well (could be wrong). So yes, it's slower, but it's still a quick car.
I've read several reviews that said the 128 is the car to get if you want a drivers car as it felt more like the original 2002tii.
But it's hard to turn your back on a turbo.
Personally, the surge you get from a turbo is something you can't replicate. But you can get close in some cars. So 9 times out of 10 I'll pick a turbo. But I wouldn't hesitate to recommend the 128 in the 1 series.