I analyze all the opinions I get. Then I choose 2 from each gender and one of them from each gender becomes the MHO. I see which user gave me a detailed answer that helps me or that represents my question.
I choose someone I strongly agree with (then I try to choose someone with an opposing view just to show that I understand the other side) or I choose someone who was the funniest Or who helped me the most. Most of the time I just let GaG choose automatically
It depends on the type of question. I don't ask too many questions that I need serious advice on, but I'll choose whomever truly helped me in those situations. I also take into consideration with whom I've had the best follow-up conversation in the comments. Those can really help my perspective. Sometimes, yes, the fun answers do win, but, then again, the questions aren't serious either.
Normally Which ever one answers the question well enough. If nobody does then I go with who ever has the funniest answer. If none of them are funny I go by the close enough and who has the least amount of mho or exp.