Some of my favorite Shipping

The Life and Times of a Winning Pony Cloud Kicker has a wild life, and Blossomforth gets dragged along for the ride. by Chengar Qordath 361,449 words · 3,726 · 193
Clop It! Twilight Sparkle and her friends awaken to find themselves in Straight Camp. by PrettyMonster 65,837 words · 1,399 · 148
Those Blue Wings A bad cold causes a teleportation spell mixup, with uncomfortable consequences for two ponies by Tchernobog 66,069 words · 2,343 · 59
Playing With My Heart Four years ago Vinyl and Octavia broke up. It was messy, painful and left scars on both. Four years on, Vinyl receives news that Octavia has been in an accident and is in a coma from which she may never wake. Can she succeed where medicine failed? by ObabScribbler 107,600 words · 1,467 · 34
Authored for Adoration When Rarity's secret hobby is discovered, suddenly all her friends want her help in completing their own writing projects. But why do they all need to be done by Hearts and Hooves Day? It's only a week away! by Sharp Spark 9,402 words · 788 · 10

Favorite Tragedy/Dark/Sad

Que Sera, Sera Equestria's past is Twilight's future by Ponydora Prancypants 15,437 words · 3,362 · 55
Seeing the Pattern Using the Pinkie Sense, Pinkamina prevents the deaths of others and cheats fate. by Aegis Shield 32,995 words · 1,403 · 60
The Sweetie Chronicles: Fragments Sweetie Belle must find Twilight by travelling through different Fanfic worlds... by Wanderer D 570,484 words · 3,340 · 70
Three Hundred and Fifty The future has everything that any pony could ever want. Twilight Sparkle wants to go home. by Void Chicken 48,448 words · 2,486 · 68
Twilight, Revised Twilight Sparkle gets brainwashed. Mind controlled, sort-of Twilight x Celestia. Nightmare Moon too. by An Unimpressive 33,727 words · 897 · 80

Austraeoh Rainbow Dash flies east. by Imploding Colon 212,744 words · 2,754 · 88
The Funeral of Derpy Hooves When Derpy Hooves gets torn to ribbons by a freak accident, everypony mourns her passing. They hold a wake in her honor, which would be a noble thing--provided she was actually dead. by shortskirtsandexplosions 93,298 words · 593 · 32
Octavia Takes The Bus Ever imagine what a certain pony cellist would think if she had to take the bus? by TheDorkside99 75,610 words · 488 · 16
Sharing the Night Twilight becomes alicorn of the stars. This is sort of a problem, because Luna kind of already was alicorn of the stars. Oops! by Cast-Iron Caryatid 234,498 words · 4,010 · 110