Dalamar wrote:If the target is hard to kill, sisters will be better. It's a guaranteed cancellation of rank bonus. Sometimes chariot charge fluffs completely and doesn't contribute, sometimes the chariot gets broken.
I think sisters are simply more reliable.
But what type of units get into the backfield early? You get flying stuff (no ranks), fast cav (no ranks), skirmisher/scouts (few ranks -- maybe). You might get a deathstar cav bus that rampages. But those cost alot of points and are delayed by redirectors/chaff. But by and large, big rank hordes don't usually make it into the backfield early. So sisters will not be getting rank cancellations if there are no ranks in the first place.
In my mind, they are a 2nd/3rd wave unit, that hits main blocks head on after re-directors and shooting blocks are engaged/destroyed. But that is a pretty niche spot for them and DE have alot of those types of units.