Without a doubt the bitch is most valuable in a breeding scenario.

On the flip side, it can be argued the male is most valuable on the competition side. As well as once accomplished he will bring far more in stud fees than a bitch will off pups that can be sold.

I think the question would need to be more specific, such as...

As a breeder which is more important?

As a handler which is more important?

And why...