A part of me doesn't like to admit it, but I sort of like listening to Lady Gaga.
Just ... I mean, listen to this.

I couldn't help myself. Go LGBT!
If you frequent in artistic circles (illustrators, writers ect.) and use feedback-sites such as deviantArt, you'll notice that fanart and fanfiction in general get much more comments and attention
than original work of the same quality/skill level. I've heard a lot of artists complain about this, not understanding why their own (or other less-known authors') complex and high-quality
stories and characters get appreciated less than fanart of the large fandoms. I know a lot of people (myself included) who can get large amounts of comments and favorites on their fanart pieces, but
close to none when it's drawing of their orignial characters being posted.
This is, of course, frustrating, and it may seem illogical to boot. After all, the drawings/writings are equal in quality, so why the difference in feedback? But I believe that there is a plausible explaination.
The reason that fanart and fanfiction are more popular is that more people (the fandom) can relate to it. The characters being drawn or written about carry more stories and feelings and associations that more people have
in common than original characters do, no matter how complex their stories may be. You can draw an amazing picture of your OC with an incredible backstory, but people are going to FEEL more when they look at fanart, because
they’ve already spent hours and days and years indulging themselves in that character’s story.
Not only this, but the viewer's emotional response will also be influenced by how large the fandom in question is. Fanart of characters from the biggest fandoms with hundreds of thousands of fans will of course get more
attention because of the sheer number of people interested in looking at it, but the fact that there already is a lot of fanart and fanfiction is a factor as well: The viewer will most likely already have looked at/read tons
of fanart and fanfiction before finding this piece, in addition to the canon material.
So if we were to measure emotional response in different kinds of work (in a very very simplified manner) ...
Original work: Emotional response = Original/canon material.
Fanwork with small fandom (with little to no pre-existing fanwork): Emotional response = Original/canon material + Time already invested in said material.
Fanwork with large fandom: Emotional response = Original/canon material + Time already invested in said material + Fanwork + Time already invested in fanwork.

Pretty self-explainatory. I see a lot of artists responding to great pieces with comments like "brb quitting art forever" or "going to kill myself now". Not only will this more often than not make the artist of the great piece feel bad (imagine someone telling you that your work have caused them to give up on doing what they love), but it's a silly attitude to have. One of the great things about art (and life in general) is that we're able to inspire each other to become better all the time.
"The problem with quotes on the Internet is that you can never know if they are genuine." - Abraham Lincoln