Naming of ID columns in database tables

I was wondering peoples opinions on the naming of ID columns in database tables.

If I have a table called Invoices with a primary key of an identity column I would call that column InvoiceID so that I would not conflict with other tables and it's obvious what it is.

Where I am workind current they have called all ID columns ID.

So they would do the following:

Select      i.ID ,   il.ID From    Invoices i    Left Join InvoiceLines il        on i.ID = il.InvoiceID

Now, I see a few problems here:
1. You would need to alias the columns on the select
2. ID = InvoiceID does not fit in my brain
3. If you did not alias the tables and referred to InvoiceID is it obvious what table it is on?

What are other peoples thoughts on the topic?