I feed Cali the Acana Ranchlands formula, which is a part of their regionals collection (grain-free; 40% meat, 60% fruits & vegetables). I'd have fed Orijen but I read that the protein levels were a bit too high for such a small dog. (4.9lbs) Plus, raw wasn't an option seeing as how I'll be off to university in a couple of years and it isn't something my mom would want to take care of.
That being said, what do you feed your dogs? And do you put as much thought into it as your horse's feed? (I have to admit, I'm finding horse feed to be much more complicated!)