Fan art is a good test of skills - recreating the familiar, and an expression of appreciation I suppose. However, I put a high order of value on original material. Even original material based off of an existing franchise is far more preferable to me. I'm not saying there's a right or wrong about it, that's just my preference.

I like both!

IDk what to say here. if it is well made i like it all. Fan art and original. But usually aI search for fan arts

It's very annoying try to imitate someone, everyone had their own style... so why made something that already made by someone? I think that's the way I should taken to be a better Me...

I prefer original, because it seems more , you know "their" work, rather than just redrawing someone elses style, character, etc.

Original, but I can't do it to save my life.

Original Art without a doubt, but more specifically, Original Art grounded in objective reality and art history ( i.e. with a discernible connection/influence to/from artists of the past)

Original art is more creative, thus I like it better than fan art.

I'm a little divided on the subject. On the one hand, original artwork shows the artist's creativity and what they come up with on their own without much outside influence. They can imagine their own world and characters and put them in situations unique to their imagination and the world it came from. Further, if it's a very high quality piece of work,drawn to the last little detail (buckles, straps, zippers, hair, dirt, etc.) just makes it that much more enjoyable that they were able to come up with and put out a hard copy on their own.
Fan work, on the other hand, has value to a person who really knows the characters and can get into the piece on a deeper level because they know background and can have a deeper connection to it. With fan work, you see a character or place that you know and can get excited about a new situation that their favorite characters are in. On top of that, a fan can also be awed at the amount of effort and detail put into a person that they know from watching, and the amount of detail that can be poured into the art that a cartoonist wouldn't be able to capture for the sake of the show still looking cartoony and the small time frame.
All in all, both kinds of art can be mind-blowing, it's all about imagination and effort

Original art. It forces people to be creative, and they have to try harder on it to get favorites, too. (if that's what they're after)