This is my kind of research, watching movies.
General
Which Disney Princess film is your favorite?: Beauty and the Beast (1991), Princess and the Frog (2009)
Which non-Disney Princess Disney Film is your favorite?: The Great Mouse Detective (1986)
Which Disney film makes you cry the most?: The Lion King (1994)
Which Disney film makes you the happiest?: Enchanted (2007)
Which Disney film has the best music?: Hunchback of Notre Dame (1996)
Which Disney film has the best love story?: Enchanted (2007)
Characters
Who is your favorite Disney Princess?: Belle, Beauty and the Beast
Who is your favorite Disney Prince?: Prince Adam (aka- the Beast), Beauty and the Beast
Who is your favorite Disney animal sidekick?: Raymond, but you can call him Ray, The Princess and the Frog
Who is your favorite Disney main character animal?: Basil of Baker Street, The Great Mouse Detective
Who is your favorite villain?: Professor Ratigan, The Great Mouse Detective
Which Princess is the prettiest?: Belle, Beauty and the Beast
Which Prince is the hottest?: Aladdin, Aladdin
Music
What is your favorite Disney song?: Belle (reprise), Beauty and the Beast (Alan Menken, Howard Ashman)
What is your favorite Disney villain song?: Hellfire, Hunchback of Notre Dame (Alan Menken, Stephen Schwartz)
What is your favorite Disney animal song?: Let Me Be Good To You, The Great Mouse Detective (Henry Mancini)
What is your favorite Disney Princess song?: Almost There, The Princess and the Frog (Randy Newman)
What is your favorite Disney Prince song?: One Jump Ahead, Aladdin (Alan Menken, Howard Ashman, Tim Rice)
What is your favorite Disney Prince/Princess duet song?: True Love's Kiss, Enchanted (Alan Menken)
What is your favorite Disney love song?: Once Upon A Dream, Sleeping Beauty (Sammy Fain, Jack Lawrence)
This or That
Anastasia or Drisella?: Anastasia
Maleficent or Lady Tremaine?: Maleficent
Jack or Gus-Gus?: Jack
Iago, Abu, or Raja?: Raja
Magic Carpet or Genie?: Magic Carpet
Flotsum or Jetsum?: Flotsum
Flounder, Sebastian, or Scuttle?: Sebastian
King Triton or the Sultan?: King Triton
Jasmine's Palace or Cinderella's Castle?: Jasmine's Palace
White Rabbit or Cheshire Cat?: Chesire Cat
Flora, Fauna, or Meriwether?: Fauna
Rita or Georgette?: Rita
Marie, Toulouse, or Berlioz?: Berlioz