Posting this because I saw that long thread on the topic resurface. You decide after reading this scout's perspective whether you agree or not -- but here's a quote.
"In high school, stats mean nothing. In college, we can look at general indicators, and when taken in context (i.e. he’s the only good hitter on his team and he gets pitched around a lot, he told our scout this frustrates him, etc.) can have some predictive value. For high school showcases with wood bats against good pitching, we can take some away and from the couple good college summer leagues we can take the most (in the amateur context). But, in general, amateur hitting stats mean nothing unless you have some scouting context and hopefully two of 1) strong competition 2) a big sample and 3) a wood bat.