Having just watched a slew of episodes, the quarterstaff isn't all that bad actually.
When I wrote up the poll, I actually had a bunch of stuff if can do.
I've witnessed it allow Diana to sunder weapons, throw it as a weapon with richochet powers, parry attacks, add to skills like balance, jump and tumble, get broken and "fix itself" again, act as a pry-bar, clearly high "to-hit" and damage bonuses.
Unfortunately, I couldn't fit them all in the limited field available.