LinkedList Part

Question

I think I might have done something right, headByRating and headByName both refer to the same address.

I have been drawing diagras working all day trying new things etc,

Answer 1

If you want to make your List type for experimentation, do it, otherwise use std::list.
If you want to keep your list sorted while you insert new elements then you have to implement an ordered list.

It's better to remove "winery field" dependencies from your List. A node should have only one next node, not many. You are making a List, not a Tree.

// list.h
struct node
{
    winery  item;
    node *  next;
};

class list
{
    ...
private:
    node * head;
};

You can't have one List ordered by different winery fields.
Make a new type, like CWinery, which will act as a container for your winery records.
In there, you can have a list to store your elements and methods to sort it or whatever you need.