User deleted post
The first one will probably be better as FuA already has a lot of CD buffs, so starting at higher CR is more important. If you want some maths however, we can calculate how much extra in-battle CD will be needed for the first build to have higher expected damage.
Expected damage will be
1 + CR * CD
As a fraction of the non-crit damage. We want to figure out how much extra CD is needed before the first build exceeds the second in battle. CD added will be the same for both if team comp is the same, so:
1 + 0.997 * (1.614 + CD) > 1 + 0.828 * (2.068 + CD)
1.6092 + 0.997 CD > 1.7123 + 0.828 CD
0.169 CD > 0.1031
CD > 0.61
So as long as she gets 61% extra CD in battle the first build will be better, which is covered by LC + Robin. Here I assumed the base dmg is the same for both builds to simplify things, but it will be higher for the first due to the ATK, making it even better.
I don't have any constructive advice, but hot damn, those crit stats are stacked!!
If you have crit dmg buffer like robin then I'd go for the near 100% crit rate. You'll have over 200% crit damage in battle easily.
Please use the correct flair for this.