Literary form of the Prologue
The Prologue consists of both poetry (vv 1-5, 9-14, 16-18) and prose (vv 6, 7, 8, 15).
Chiasm in the Prologue
The Prologue can be viewed as a chiasm

Relationship Between Father & Son in the Prologue
The Prologue emphasizes the relationship of the Word to the Father, an equal but not identical divine Person.
Prologue and Creation