The main advantage w/ PRiDE OP using the vehicle mode windscreens for the chest is that the shoulders aren't prone to popping out like on FE Voy OP. But I find that PRiDE OP's chest windows don't lock out firmly and are prone to sliding back in during handling/play. But the one thing that really hurts the look of this toy is the lack of paint apps on the body - it'd look a better if there were some red on the 'ribs' to break up the grey.

As for the seams, the most noticeable seams are the ones that bisect the vehicle mode along the grill, bonnet and wind vane - and PRiDE has seams in these places too. Not that I mind them on either mould. But PRiDE OP's vehicle mode suffers from several holes on the sides of the cab and just generally it's a short truck!! (chibi!!!) Typical PRiDE... same price points for smaller toys. The holes on the roof for the weapons looks unsightly too IMO.

Anyway, here's a comparison photo between FE Voy and PRiDE OPs.
L-R: Takara First Edition, TFP Robots In Disguise, Hasbro First Edition


And here's how they compare with the show model:
Top-bottom: HAS FE, TAK FE, HAS RiD


More comparison pics can be seen here.