I feed my girls Wellness (mostly from the Core line) and she's done fabulous. In a nutshell, each dogs has individual tastes and needs. What I'd do is figure which ones to start off on and see how they do on it.
Dog Food Reviews and Ratings | Dog Food Advisor is a good place to do some comparison.
__________________
R.I.P. Mick & Mandy (before 2010), Mila - 4/3/15, Chloe - 2/18/16, Kimchi - 6/2/2021