It's overall more powerful and may be a bit quieter but the focus i find is a better overall car for me, i like a car that drives well,handles well,great breaks,good powerband etc.. The focus offers it all except maybe a few db's higher then the cobalt, not a big deal for me. The duratec in the focus is also more refined and doesn't sound like that thrashy ecotec, it's smoother and just a better running engine.
The cobalt could of been a whole lot better but in typical GM fashion they go half way and quit. The model was like mid trim.Whatever gm calls it, Ls7,ls2,lt,lssss78,ncc 1701-d