The highest amount of score that you scored out of those 2 was the B rank one. Even though it obviously looks like it is the worst one, you get more points when you get higher combos. Your B rank play has less combo than your A rank but you acquired high combo's more consistently than your A rank one. For example: Your B rank play went like 340x > 100x>100x or something like that and your A rank play was: 351x>25x>25x>25x>25x As your combo gets higher your points go up exponentially which most likely means that if this example was true, your B rank score would be higher. Accuracy doesn't really affect how much you score, just your combo's.
