Bad: Pocher.
They leave out a lot of things, make you guess at a lot of things, completely leave out entire sequences and assemblies... and if you actually do try and follow the instructions step by step, you'll wind up having to disassemble things you already assembled in order to get later assemblies to go where they're supposed to go! For kits that have anywhere between 800 and 2600+ parts depending on which kit you're talking about, you'd assume that a complete, accurate and detailed assembly manual would be a given, but no!
I would think that the absolutely horrible instruction books are the main reason so many people start one of these kits and just give up in frustration, and sell the thing on ebay halfway built.