So I've been meaning to ask this for a while but always forgot about it. Which brave chains give more NP: QBA chains or ABQ chains? Also between ABB and BBA chains?
it depends on the servant, for example on Jack it's AQQ but for Scathach it's ABB and Waver it's AAA. look at the hit counts of the servant's cards and it should tell you what's the best NP gen sequence. as for QBA vs ABQ, it should be ABQ if my understanding is right and ABB for the second part
ABQ gets +34% and QBA gets +19% on Dantes. so it looks like ABQ is better based on that
If the servant has high hit counts on their quick and buster cards, it makes sense to put the art card first since then, each following hit can generate extra NP. The first card will give a bonus to the 4th card of the chain as well.
I believe ABQ is almost always more efficient than QBA. If anything I'd go for BQA over QBA to maximize NP.
Between ABB and BBA the difference is probably negligible as buster cards alone don't generate NP and usually come with few hits on them.
You can find the NP gain in a few databases, e.g. app media (unfortunately only japanese), or http://fategrandorder.gamea.co/c/vm8crjpj (unfortunately dead) on the servant pages.
