Thunderwalker Pack

Stalkers use Wisdom and Smarts.
Chasers use Speed and Agility.
Finishers just use Strength.
Herbalists will use Wisdom and Smarts at some point, but for now they aren't actually important.
Scouts will find different stats useful depending on which area they're scouting.
Like scouts, Mentors will find different stats useful depending on what lesson they're teaching.
Pupsitters don't user any stats.
Lead Wolves use Strength, Speed, Agility and Smarts to battle. Strength is the most important one because you can win most of fights with this stat alone when you rely on latching.