Cleaned up my previous posts to remove irrelevant comments and info.

I don't want to dwell on this issue further.

The bottom line for me is:

There is no single "best" banish formation. Everything depends on your individual heroes' star levels, saints, and your available gear. I suggest you try to look at the formations of those who do well in Banish and study how they work, and improve on them to tailor your own lineups.