We love Acana over here.
We rotate between Grasslands and Prairie Harvest flavor. It's made by Champion Pet Foods (also makers of Orijen) and I really love and trust the company.
We're about to add Go! Natural Endurance food into our rotation, too, I believe (since I just saw our local pet store carries it). That's made by Peturcian (sp?) food. Jackson likes Grasslands flavor better so if he ends up liking Now! we will rotate bewteen Grasslands and Now Endurance.