Soon, with similar ad placement algorithms, what should one expect cost per campaign as a ratio of Yahoo to Google. I am assuming equal competition and equal ad quality on each network.
For example, should you expect Google 80% and Yahoo 20%. What are others thoughts!

I expect my Yahoo spend to be 10% to 20% of my Google spend and MSN spend to be 50% of my Yahoo spend.

Tends to work out over dozens of product areas.

My spend is like

68% for Google
25% for Yahoo and
6% MSN .

Google is the premier search engine so it will have the max ratio !

70% for Google