I am pretty happy with my montbell alpine light down parka, I got it on sale (which is rare) but I think they run 200$.

I guess it is difficult to say what might work for you, how cold will it be when you are using it? Is it just for around camp (low activity), or while doing something more? How warm is your current down sweater (fill power and amount)?

I couldn't actually find the amount of fill in the ama dablam jacket so I can't really compare anything to it.