A Captain ALWAYS goes down with their ship, no matter what 

{Avengers/Related Marvel films}

• Thor/Loki
• Iron Man (Tony Stark)/Captain America (Steve Rogers)
• Captain America (Steve Rogers)/Hawkeye (Clint Barton)
• Iron Man (Tony Stark)/Hulk (Bruce Banner)

{The World of Sherlock Holmes}

• Sherlock/John (BBC Sherlock)
• Holmes/Watson (RDJ and Jude Law)
• Holmes/Irene Adler (RDJ and Jude Law)
• Mycroft Holmes/Greg Lestrade (BBC Sherlock)

{Person of Interest}

• John Reese/Harold Finch

{LOST}

• Sawyer/Jack Shephard
• Desmond Hume/Charlie Pace
• John Locke/Ben Linus
• Charlie Pace/Claire Littleton
• Sayid Jarrah/Shannon Rutherford
• Juliet Burke/Kate Austen
• Jack Shephard/Kate Austen
  
• Sawyer/Juliet Burke
  
• Jacob/Black Smoke
• Desmond Hume/Penny Widmore-Hume

{Doctor Who} (New Who)

• Nine/Rose
• Ten/Rose

{The Losers}

• Jensen/Cougar
• Roque/Clay

{Watchmen}

• Nite Owl II (Daniel Dreiburg)/Rorschach (Walter Kovacs)
• Dr. Manhattan/Ozymandias (Adrian Veidt)

{Rise of the Guardians}

• E. Aster Bunnymund/Jack Frost

{Middle Earth}

• Thorin Oakenshield/Bilbo Baggins (The Hobbit)
• Aragorn/Legolas (Lord of the Rings)
• Samwise Gamgee/Frodo Baggins (Lord of the Rings)
• Aragorn/Boromir (Lord of the Rings)

{Merlin}

• Arthur Pendragon/Merlin
• Arthur Pendragon/Guinevere

{Misfits}

• Nathan Young/Simon Bellamy
• Simon Bellamy/Alisha Bailey

{Harry Potter}

• Harry Potter/Draco Malfoy
• Severus Snape/Harry Potter/Draco Malfoy (as displayed in this fic aka the best HP fic I’ve ever read)
• Sirus Black/Remus Lupin
• Ron Weasley/Hermione Granger
• Dean Thomas/Seamus Finnigan

{X-Men} (non-comic verses)

• Erik Lehnsherr/Charles Xavier (all verses)
• Armando ‘Darwin’ Muñoz/Alex ‘Havok’ Summers (XMFC)
• Lance ‘Avalanche’ Alvers/Pietro ‘Quicksilver’ Maximoff (X-Men Evolution)
• Remy LeBeau ‘Gambit’/Rogue (X-Men Evolution)

{Leverage}

• Alec Hardison/Eliot Spencer
• Nathan Ford/Sophie Devereaux