The two stars picked up 11 awards between them – Swift six and Gomez five – including the bulk of the event’s music honours.
Swift, who was feted with the Ultimate Choice Award, also picked up the Choice Female Artist, Choice Country Female and Choice Red Carpet Fashion Icon accolades, while Gomez was named Choice Female Hottie opposite boyfriend Justin Bieber and Choice TV Actress (Comedy) for her role in The Wizards of Waverly Place.
Gomez and her band The Scene, who performed during the show, also took home Choice Music Group, Choice Love Song and Choice Single awards.
The stars of Harry Potter were honoured with seven prizes including Choice Movie Actress (Sci-Fi/Fantasy) – Emma Watson – Choice Movie Villain – Tom Felton – and Choice Movie (Sci-Fi/Fantasy).
The Twilight Saga: Eclipse picked up four awards during the ceremony including a Choice Vampire honour for Robert Pattinson and Choice Movie Actor (Sci-Fi/Fantasy) for Taylor Lautner.
And there was more vampire success as TV drama The Vampire Diaries picked up five awards honouring stars Ian Somerhalder and Nina Dobrev.
Choice Movie Action: “Fast Five.”
Choice Movie Actor Action: Johnny Depp, “The Tourist.”
Choice Movie Actress Action: Angelina Jolie, “The Tourist.”
Choice Movie Sci-Fi/Fantasy: “Harry Potter and the Deathly Hallows: Part 1.”
Choice Movie Actor Sci-Fi/Fantasy: Taylor Lautner, “The Twilight Saga: Eclipse.”
Choice Movie Actor Romantic Comedy: Ashton Kutcher, “No Strings Attached.”
Choice Movie Actress Romantic Comedy: Emma Stone, “Easy A.”
Choice Movie Actress Comedy: Cameron Diaz, “Bad Teacher.”
Choice Movie Actor Drama: Robert Pattinson, “Water for Elephants.”
Choice Movie Villain: Tom Felton, “Harry Potter and the Deathly Hallows: Part 1.”
Choice Movie Liplock: Emma Watson and Daniel Radcliffe, “Harry Potter and the Deathly Hallows: Part 1.”
Choice Movie Hissy Fit: Ed Helms, “The Hangover Part II.”
Choice Movie Male Scene Stealer: Kellan Lutz, “The Twilight Saga: Eclipse.”
Choice Movie Female Scene Stealer: Ashley Greene, “The Twilight Saga: Eclipse.”
Choice Summer Movie: “Harry Potter and the Deathly Hallows: Part 2”
Choice Summer Movie Star Male: Daniel Radcliffe, “Harry Potter and the Deathly Hallows: Part 2.”
Choice Summer Movie Star Female: Emma Watson, “Harry Potter and the Deathly Hallows: Part 2.”
Choice TV Show Drama: “Gossip Girl.”
Choice TV Actress Drama: Blake Lively, “Gossip Girl.”
Choice TV Show Fantasy/Sci-Fi: “The Vampire Diaries”
Choice TV Actor Fantasy/Sci-Fi: Ian Somerhalder, “The Vampire Diaries.”
Choice TV Actress Fantasy/Sci-Fi: Nina Dobrev, “The Vampire Diaries.”
Choice TV Male Scene Stealer: Michael Trevino, “The Vampire Diaries.”
Choice TV Female Scene Stealer: Katerina Graham, “The Vampire Diaries.”
Choice TV Villain: Justin Bieber, “CSI.”
Choice TV Reality Show: “Jersey Shore.”
Choice TV Male Reality/Variety Star: Paul “Pauly D” Del Vecchio, “Jersey Shore.”
Choice TV Show Comedy: “Glee.”
Choice TV Actor Comedy: Cory Monteith, “Glee.”
Choice TV Actress Comedy: Selena Gomez, “Wizards of Waverly Place.”
Choice TV Breakout Star: Darren Criss, “Glee.”
Choice Music Male Artist: Justin Bieber.
Choice Music Female Artist: Taylor Swift.
Choice Music Group: Selena Gomez and The Scene
Choice Music Single: “Who Says,” Selena Gomez and The Scene.
Choice Music Female Country Artist: Taylor Swift.
Choice Music Country Single: “Mean,” Taylor Swift.
Choice Music Love Song: “Love You Like a Love Song,” Selena Gomez.
Choice Music Breakup Song: “Back to December,” Taylor Swift.
Choice Summer Music Star Male: Bruno Mars.
Choice Summer Music Star Female: Katy Perry.
Choice Summer Song: “Skyscraper,” Demi Lovato.
Choice Red Carpet Fashion Icon Female: Taylor Swift.
Choice Male Hottie: Justin Bieber.
Choice Female Hottie: Selena Gomez.
Choice Comedian: Ellen DeGeneres.
Choice Twit: Justin Bieber.
Choice Vampire: Robert Pattinson.
Choice Web Star: Rebecca Black.
Ultimate Choice Award: Taylor Swift.