Which deviations are most valuable?

[aceside]

But, a lion's share of the value from play deviations comes from Insurance and 16v10.

I watched that video clip but intuitively I don't believe what is stated there. It is very clear to me that the most frequent encounter of hands is 16v10, so this must be the most valuable deviation if flat bet. The insurance bet is a lot less frequent, and thus a lot less important. I guess 15v10 should be a lot more important than insurance too. However, the ultimate question I ask is this: If we flat bet, how much edge can a player gain from playing deviations only? Additionally, if a player follow a bet ramping spread of 1/2/4/8/16 for step increasing true count, how much can a player get from combing deviation and spread?