I think Leolaia has very well summarised the point I have attempted to make a number of times: the Fourth Gospel professes a sort of dynamic, transitive notion of divinity extending, first to the Son, and ultimately to the believers/elect (if not the "world" itself, as might be gathered from chapter 17). At each stage it implies a paradoxical combination of dependence and submission on the one hand, oneness and equality on the other hand. In that sense it suits proto-Gnostic thinking well, although the notion of creation (and flesh, or matter) is not yet an issue as it will become in later (2nd-century) Gnosticism. However, the point is: whatever can be assessed of the relationship between the Son and the Father will ultimately be true of the believers-elect.
By emphasising the absolute difference between God and man as Creator and creature, the orthodox reading introduces a discrepancy in interpretation. When the text says Father * Son * Elect (* standing for the paradoxical, dynamic relationship of both equality and dependence, as I tried to describe above) orthodoxy reads F = S > E. Meaning that "*" is interpreted (statically) once as "=", then as ">". Arianism (and later unitarism, including the JW brand) picks on this discrepancy to offer a more formally consistent, yet wrong, interpretation of "*" as meaning "F > S > E". In both cases the original meaning of "*" is lost because both orthodox and Arians think of it in static terms, leading to the false dichotomy either = or >.
On John 1:1b I've tried to discuss that earlier (although in a more philosophical than exegetical way perhaps) on http://www.jehovahs-witness.com/10/99593/1.ashx
One interesting possibility (which I have seen echoed in the last French edition of the Jerusalem Bible) is the possibility that 1:1c ("the Word was g-God") is an early but secondary addition to the Prologue hymn, calling for the awkward repetition of 1:1b in 1:2. This I think is worth pondering.