Picking a favorite proser is so hard, because I love everything you guys do. Danceinsilence's 3 Evils series is amazing. TaiSensei's Tainted Sky is amazing as well. Then there's Mnezz, who always is so kind and supportive to everyone as well as writing some incredible pieces. There are so many ways to excel in Prose, and everyone here finds their niche and owns it.
BUT... of course I wouldn't be entering this challenge if I didn't have an answer. So, after much deliberation, my favorite Proser must be...
Taki is the author of River's End. The world building in this series is incredible! The characters are so full of depth, relatable, and the plot is an emotional rollercoaster! And the cliffhangers!!! By God, the cliffhangers! There were twists... there were turns... there were mysteries, and betrayals... and there were aliens!
What more can you ask for?