I don't think it is so much any of those things that enable your best work, it is having a problem that requires innovation, in a company that allows innovation (probably because it will die without it, so a startup), and where the skills required are especially suited to you.

That said probably the companies that provoked my best work where ones that

1. I had a personal investment in

2. There were parts of what we worked on that I found intellectually interesting.

2. had small teams and we were not afraid to argue for days about how to do something, and arguments were clear.

3. technical people that worked together sat together.

The places I did my worst work

1. Hated the concept and what we were doing.

2. Just cashing a paycheck (I have also done good work just cashing a paycheck so not sure how important it is)

3. Even if the teams were small the tasks the team handled were split up in such a way that nobody really had any input on anybody else's area.

4. Argument just did not make any headway on anything. If someone had more power in an area you let them have their way because it was a waste of time saying anything.

5. if you sat with the people you worked with it was almost an afterthought.