V1 Nismo.
V2 Nismo.
Nismo S-Tune
V1 and V2 are OEM wings, Nismo S-Tune is made by Nissan but was never OEM on any models.
The Carbon Creations is a copy of Nismo S-Tune. I would not buy anything made by Carbon Creations personally, but it all depends on your budget. If you can not afford an actual S-Tune wing, Sebon makes a decent CF copy.
If you like V1, don't buy it from Nissan. Mucho denero. Keep an eye on Craiglist or in the for sale forum, and yo might come across someone selling one. If you can find one in your colour, even better - saves you money on paint. $600-700 dollars is a good deal on a Nismo V1 wing. There are of course copies, but I would say Seibon copy is probably the better one of those.