I know i'm guilty of this at times maybe most of the time.
just picking the answer I like best no matter if it was helpfully or not or even relevant to the question or topic.
Most Helpful Girl
Depends on the question. Sometimes I pick the one I consider to be the most "thoughtful". Sometimes it's the one that made me laugh the most, etc.1
Most Helpful Guy
Not sure if you were here in 2011 but back then it was actually called Best Answer.
I guess they changed the terminology because first of all, we are only stating our opinions, and 2nd, you can't have a best opinion because its a subjective thing.
At the end of the day its the same thing just with a different name.3