I would def go with the Innova....check this thread out:
http://www.yorkietalk.com/forums/yor...thoxyquin.html
Artemis is manufactured in the Diamond Pet Food Plant and they use chemicals to preserve their fish. Be careful!! Even if Artemis doesn't have fish in the formula you want, I'm not sure I would be ok with purchasing dog food from a company which uses potentially harmful products in their foods.
Innova is a great company (Natura.) My Snickers was on Evo for a long time but we switched recently due to his boredom. Now he is on Acana grainfree and they also have a puppy formula if you're interested.
Best of luck to you
-Snick & Viv