Got into NAV from CI's suggestion & a paid newsletter to which I subscribe also suggested it. So that is good enough for me. As for the others, I have the aforementioned newsletter do the research, (they help in the sorting), and then I will run them through my own set of metrics. It remains to be seen if the newsletter and the metrics actually last for the long term.

I do agree with your last sentence. But why restrict your choice to just one? For instance many pundits are saying that this year is the year of the platform. Maybe. But it's quite time consuming to do your own research. You have to be somewhat a geek and really understand the technology if you are to analyze below surface level.

So it's much easier to get a trusted source to do the analysis for you and run through a rough metric of your own.