Good for you for wanting to get rid of the Bil-Jack. It's not a good quality food at all and horribly overpriced.
Canidae is a good quality food offered at a very fair price. The reason why the company can keep the cost down is that first of all they don't do a lot of advertising/sponsoring and, unlike many other companies, they do not do their own feeding trials but instead just formulate and the foods to meet written guidelines.
Nutro isn't a particularly good food either, the Ultra isn't all that different fromt he regular "Natural Choice" line,e xcept with a few gimmicky supplements thrown in. The ingredient quality is the same - not great.
Eagle makes excellent foods, and some other companies you might want to check out are Natura Pet Products (Innova, Innova Evo, California Natural, Healthwise, Karma), Nature's Variety (Prairie, Raw Instinct), Solid Gold, Breeder's Choice (Pinnacle, Avoderm), Castor & Pollux, Timberwolf Organics and Natural Balance.