Top 5

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  A Dream A not so standard human-in-Equestria story including but not limited to: democracy, tequila, and robots. by totallynotabrony 539,872 words · 1,999 · 211
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  Changeling Doll A changeling pretends to be a magical doll. by Pickleless 37,490 words · 3,218 · 103
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  An Affliction of the Heart Can a creature that feeds on love ever feel it? by Anonymous Pegasus 35,358 words · 5,289 · 92
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  Labyrinth of Madness Fallout/MLP crossover collab by Speven Dillberg 155,836 words · 384 · 19