I LOVE Acana!!! I have had the best luck with it out of ANY food we've tried. Currently we are on the Singles line and doing the best (lamb & apple, and duck & pear) but used the grain-frees w/ great success as well!!
It's cheaper than a lot of the other foods I see in pet stores. I pay around $15, I believe, for a 5.5lb bag of Prairie Harvest (and I think it's $1 more for lamb, $2-3 more for Ranchlands, etc) whereas I've seen Science Diet, Royal Canin, Solid Gold, and others for a LOT more!! The Singles foods ARE a bit more as they are being targeted as 'hypoallergenic' foods w/ minimal ingredients, so I guess they charge more. It was $18 for a 5lb bag (vs. 5.5lbs that the grain-frees are). But price varies by location.
But anyways yep, I like Acana the best. Though I think Orijen is nice, I am not sure it's necessary for our pet dogs (active or not). There's just so many ingredients, etc, I prefer a bit simpler, yet still not containing by products, soy, wheat, corn, etc. Just my personal preference.
I like that it's made in it's own manufacturing plant, they don't outsource to another place to make anything (which is why they don't have canned foods- they won't use any other cannery, and don't like the current choices out there), and that it's a fairly small owned company, and I like where the ingredients come from. I find their quality to be suberb and I even appreciate the vacuum-sealed bags! lol! Each kibble smells like what it is. I.e. the lamb ones all have a smell of lamb to me, the fish ones are VERY fish-smelling, which I like.