Great post which shows that all the varities of Klingons do not actually differ that much.
I think that nuKlingon differs a lot from the others. From TMP onwards all the Klingons were easily recognizable as Klingons, but this one could be just some random alien. Aside from the Klingon logo he's wearing, there is nothing Klingon about him. Even the helmets looked more Klingon!
I actually liked the idea with the helmets ... you could easily tell they were Klingons and the whole topic of redesigning the Klingons had been avoided alltogether. Perfect solution!