Laverde is a mid sized powerful burst player, who’s not great above his head, lacks sideways agility, and is relatively poor at ground ball gets.
Stewart is an agile running tall who isn’t a strong contested mark, and can’t really chop out in the ruck or move to the backline.
They each do something’s really well, but have areas to substantially improve on.
They are not comparable players in our set up - Stewart demands a tall defender (he can out mark smaller blokes).
Laverde as a forward requires an ordinary mid sized flanker to defend him.
So a significant selection decision isn’t head to head, but based on team structures. At present Stewart does more to open opportunities for Joe and Hooker than Laverde does.
Given the Stringer and Smith arrivals, and hoping that Laverde can improve at least some of his weaker areas with a good injury free run, I think his best chance to become an automatic best 22 is actually as a mid, and then more as a Zaharakis type - running in straight lines rather than as an inside mid, for all his body strength.