It's a minimal difference but assuming average crit rate luck Det ends up slightly better by like 2-3 dps. Crit has the potential to do a fair bit more, but would take a lot of crits which is down to RNG.
So you get back to the regular "det for stability, crit for big hits" thing. SMN does have a lot of chances to crit with like 5 things proccing per GDC but none of them are terribly big.

The main Det build is the complete opposite of the crit build though, if you want to keep accuracy