The "Favorite Artist" profile field is so limited in length, so I felt I had to do this little writeup to do my favorite authors justice. Please note that all of these authors write a lot of stuff that are marked as adult, and may contain violence, blood, sex and other things that can make stories more interesting, but also not suitable for everyone.

 Jackal_Hound,  Strategist and  Boiken get the first spot. All those accounts belong to the same guy. He is amazingly productive and often posts several chapters per day. I would describe his works as enjoyable action stories. Some of my favorite stories of his are
Haunting, Extreme Ways (sequel to haunting) and Daylight (these are links to the first chapter/prologue).

As of the moment I'm writing this, there are three stories in progress that are also well worth to start following: School Supremacy, Gate Jumper and Alliance

Be sure to look also in the Scraps section, for he hides many good stories there.

 jeevestheroo is next. He has a very commendable always-happy, ever-enthusiastic attitude. Most of his works are erotic stories, or as his profile currently mentions a few times: "I write porn." Just go to his gallery and see if you don't find anything you like.

Some other writers you'd might be interested in:

 Coracleboat I'd like to mention for her desire to avoid stereotypes and thinking about how you can make furry characters less "blatantly human".

 ookamkasumi has posted a lot of advice for authors, which looks interesting (but it's very unlikely that I will submit any works in the foreseeable future).

If you're looking for visual art, try some of these:

If anyone is actually reading this thing and want me to add more elaborate descriptions of the authors or to add more, feel free to add a comment.