Quality vs. quantity - which one will you choose?

Sorry if this question is really vague.
Let me just give a few examples -

(Example #1)
A class is supposed to write an essay on a certain topic – student A writes an essay containing over 10,000 words and it has contents that can be considered as reasonably good while student B writes an essay of 5,000 words of the same standard, or even better.

Which one will you give credit to? Student A who may not be as inept as student B but does put in extra effort to do well; or student B who is definitely more outstanding in terms of academic work? (Note: that does not mean that student B did not put in any effort.)

(Example #2)
Quality time spent with loved ones VS plenty of time spent with loved ones but lacking of quality (does not mean that no effort is put in).

Will you prefer that you get to spend quality time or to have plenty of time with your loved ones? Do you think that less time spent with someone, means that they don’t love you as much?

(Example #3)
I’ve also heard about ‘less is more’, does that mean that quantity don’t matter that much anymore? Does that mean that we focus on quality and forgo quantity? Does it mean that quality shows more of something/someone as compared to quantity?

And why do you think so? Let’s discuss! (=