Which era, in term of treasuring enriched literature, contributed more: Anglo-Saxon or Anglo-Norman?

Both periods
of English history have produced pieces of literature we treasure, but in terms of English
literature, more treasured pieces have come down to us from the Anglo-Norman period. This is not
to say that the Anglo-Saxons didn't value or produce great literature, but less of it has
survived.

The main work in the English literary tradition that is treasured
from Anglo-Saxon literature is Beowulf. It's difficult to overestimate the
value of this work. It has provided anof the knight-hero slaying the monster/dragon that became
a common motif in Anglo-Norman literature, usedin ways that were imitated by the Anglo-Normans
(not to mention modern writers), and provided a template that has in many ways, through writers
like Tolkien, become immensely popular in twentieth and twenty-first century fantasy
literature.

A greater volume of treasured literature, however, survives from
the Anglo-Norman period. At that point, the Normans had invaded and conquered England, and the
Germanic English language became heavily inflected with French and romance language elements.
The shift in language was so dramatic that it became called Middle English. This is the first
language that is close enough to modern English, at least in its London , that we can read as
recognizable, if alien, English.

This later Medieval period produced a great
flourishing of literature, and we remember such towering figures as Chaucer and the Gawain poet,
and the growth of such genres as rood poetry, allegorical religious drama, and Arthurian
romance. So many genres developed and flourished during this period, from bawdy humor to
deeply-felt emotional poetry that the Renaissanceand the modern erahas had much to borrow
from.