Traits of a good stock

This is an excerpt from Motley Fool Hidden Gems by Tom Gardner:

Essentially, my strategy is a twist on the fundamental criteria used by some of the world's great value investors. For starters, consider these seven traits of a hidden gem:

1. Predictable growth in free cash flow
2. Rich in assets, with little or no debt
3. Low multiple of price to free cash flow
4. Generous returns on equity, coupled with a reasonable cash flow multiple
5. Insider ownership and shareholder-friendly management
6. Insider buying, especially by executive officers
7. Leadership of an important niche

It reminded me of the things Rebecca's friend Amy was talking about in last nights meeting...

So, which one should we buy?