Well Annie has not tried either.... But she does eat Dick Van Patton's Natural Balance. She has been eating successfully for over a year and a half now. No skin problems etc.
http://www.naturalbalanceinc.com/
Natural Balance is available at Petco and is supposed to be one of the better pet foods and finer products. They have formula's for allergies and even their regular one (which Annie eats) is good for things like that...