I dont have seen any of them in person, but for me the transculent plastic is better( for the viewpoint of the technique).
But not perfect, neca must inprove this that they looks more like Hot Toys.
Now its to transculent, looks to many like plastic. more mat and no glossy finishes makes this better.
This is very important, especially for 18" versions.
The problem with painted skin tones are sloppys, etc paintflaws. I saw many of this errors on the Neca Tech Noir Terminator.
Have Hudson cross-eyes ?
Some have this problem on his exenplares.