Needless to say Dash is superior to ATR any day....
Oh.. and Kingfisher, Jet airways, Vietnam etc. are fools to order a substantial number of ATRs?
One might be cheaper but might have a higher operating cost while the other must be more expensive but might have a lower operating cost.
If the Q400 costs lower than the ATR and its operational cost is also lower than the ATR then so many airlines around the world wouldn't have been operating 100s of ATRs today.
Only time will tell which aircraft will perform better in the Indian conditions