ATR-72 vs Q400

[Cseries]

I know its been done before, but without starting an A vs B war, does anyone have the operating costs of an ATR-72 vs a Q400 over a typical, say, 300nm sector?

From all the research I have done thus far, it seems the only real edge the Q400 has over the ATR-72 is speed, with every other factor being in favour of the ATR.

I'm happy to be proven wrong.

Thanks