i have a feeling most of them get parts from the same suppliers.
year one mentions the flaws, the others dont mention them, but they are still there.
i was happy with the parts i got from paddock, but i cant remember which things i bought.
i have dealt with year one, classic, ames, and paddock, and it seems that when one gets a new product, they all do.
year one is more expensive, but their cataloge is good to have around to tell you whats imperfect about the parts.
the only parts i ever was not satisfied with was when they offered both repo and oem style, and i cheaped out.
my rear quarter skins are not 100% correct, but they look good to me. my front valence had to be modified to fit, and the metal is thinner, but it looks good.
the only interior parts i have bought are front seat covers, headliner, dome light, and carpet, and i am very happy with them.
never cheap out and get repo when you can get oem or oem quality/style.
if you can ever get good used parts, get them instead.