This is the code for decline reasons in AFCH v4.1.19. (Taken from http://en.wikipedia.org/wiki/User:Mabdul/afc_beta.js, available under the Wikimedia Terms of Use.)

afchdecline.js

// Duplicate articles
[{ label: 'exists - Submission is duplicated by another article already in mainspace', value: 'exists' },
{ label: 'dup - Submission is duplicated by another article already submitted and in AfC space', value: 'dup' },
// Test edits
{ label: 'blank - Submission is blank', value: 'blank' },
{ label: 'test - Submission appears to be a test edit (please ensure that it is not a test of a tool before declining)', value: 'test' },
// BLP
{ label: 'blp - Blatant violation of BLP policies (immediately blank and mark for deletion)', value: 'blp' },
{ label: 'ilc - BLP does not meet minimum inline citation requirements (WP:MINREF)', value: 'ilc' },
// Merging
{ label: 'mergeto - Submission should be merged into another article (type a comment with a link to the article below in the comment box)', value: 'mergeto' },
// Blatant [[WP:NOT]] violations
{ label: 'joke - Submission appears to be a joke', value: 'joke' },
{ label: 'not - Submission is covered under "What Wikipedia is not"', value: 'not' },
// Prose issues
{ label: 'lang - Submission is not in English', value: 'lang' },
{ label: 'cv - Submission is a copyright violation (blank the article, enter links in the box below, and mark for deletion)', value: 'cv' },
{ label: 'redirect - Submission is a redirect request', value: 'redirect' },
{ label: 'news - Submission appears to be a news story of a single event', value: 'news' },
{ label: 'dict - Submission is a dictionary definition', value: 'dict' },
{ label: 'plot - Submission consists mostly of a plot summary', value: 'plot' },
{ label: 'adv - Submission reads like an advertisement', value: 'adv' },
{ label: 'context - Submission provides insufficient context', value: 'context' },
{ label: 'essay - Submission reads like an essay', value: 'essay' },
{ label: 'npov - Submission does not read in an encyclopedic tone', value: 'npov' },
// Notability
{ label: 'neo - Submission is about a neologisim that does not meet notability guidelines', value: 'neo' },
{ label: 'web - Submission is about web content does not meet notability guidelines', value: 'web' },
{ label: 'prof - Submission is about a professor does not meet notability guidelines', value: 'prof' },
{ label: 'athlete - Submission is about an athlete does not meet notability guidelines', value: 'athlete' },
{ label: 'music - Submission is about a musician or musical work does not meet notability guidelines', value: 'music' },
{ label: 'film - Submission is about a film does not meet notability guidelines', value: 'film' },
{ label: 'corp - Submission is about a company or organization does not meet notability guidelines', value: 'corp' },
{ label: 'bio - Submission is about a person does not meet notability guidelines', value: 'bio' },
{ label: 'nn - Submission does not meet general notability guidelines (use a more specific reason if possible)', value: 'nn' },
// Sourcing
{ label: 'v - Submission is improperly sourced', value: 'v' },
// Custom
{ label: 'Select a reason for declining', selected : true, value: 'reason' }