actually the best itemized gear for leveling has +agi and +str, since agility gives you crit and dodge in equal amounts and an non-negligible amount of armor too.
no other stat gives avoidance and damage and since the stat allowances on gear only takes into account the crit aspect of agility, you get avoidance and armor for free.
stamina is usually only minimally useful, it can reduce downtime but only up to a certain point since food doesn't heal much hp. If you have a two mob pull that you can't avoid, usually you can drag one mob outside of the other mob's leash range also the LoS on kronos is so easy to abuse while leveling.