so I know that since Zulgh reworked dual wield and parry several years back, offhand weapon adds a boost to parry (and can be used to parry). or something like that.

my question is, let's say i'm a thief, all things equal, will i parry the same regardless of sword in mainhand and dagger in dual compared to dagger in main and sword in dual? or does the dual wield only a fractional additive boost to the mainhand parry, so sword + dagger is better because sword is always better than dagger in parrying?

thanks