Template:Bq – quote without border, page-wide; like (and compatible with parameters of) the older {{Quote}} but with more features; conversion from all others listed here is trivially easy (retaining key data, losing decoration, etc.)
Template:Quote – quote without border, page-wide, smaller-sized attribution
Template:Cquote – pull-quote between large quotation marks, page-wide; should rarely be used in articles and is not for block quotations, only pull quotes
Template:Rquote – pull-quote between large quotation marks, in a reduced floating area; also rarely appropriate in articles
Template:Talkquote – for quoting other editors (or guidelines, etc.) on talk pages (in a block)