:Thanks for the alert.  The Canterbury Tales task force has just recently been formed. We're still in an early organizational phase, but one (I hope) of the first things we'll be doing in the coming weeks is developing a "mini style sheet" for topics like this, and then beginning to bring articles up to speed. Anyone is welcome to join, comment, or just gawk.  
 :...and for the record, my unofficial opinion is: The Canterbury Tales; but with the option of removing the "The" for grammatical purposes, as in: Geoffrey Chaucer's Canterbury Tales.