Klatt is currently the best analyst. I thought Chris Spielman was extremely good at the same kind of analysis-- things like an OL tipping a play with his feet, or the why of when a specific approach is or isn't working. Any idiot can watch a team complete a dozen crossing patterns in a row and say "Ohio State continues to work the crossing patterns, Michigan has to do a better job of stopping them!" It takes a competent analyst to explain that, because Michigan is NOT telling its DBs "just run behind the receiver and let him catch the ball and then chase him til he gets tired", something they ARE telling them isn't working, and WHY it isn't working. What is it, and why is it. Klatt and Spielman are about the only two I can recall saying anything in the booth that a coaching staff would be interested in hearing.
Herbstreit is probably the worst. He is one hundred percent, literally one hundred percent, jargon without analysis. High-pointing the ball, athletes in space, hog mollies dominating on the offensive line, big hole in the A-gap, 11 personnel, it's entirely jargon to cover up the lack of insight. Which makes sense; Herbstreit played in a prehistoric Ohio State offense and took his last snap almost thirty years ago. His experience as a player doesn't shed any light on why 2021 football tactics work or don't work beyond the most basic stuff a la "that was a good block" and I guess he doesn't really work at learning it well enough to explain it.
Gary Danielson is a fucking clown and almost unlistenable if the game affects the SEC's post-season outlook, because whatever the fuck it is, he will find a way to try to rhetorically turn it to the conference's advantage. It's rare to see a football play with perfect blocking, a perfect read by the QB, and a perfect throw to a receiver who ran a perfect route only to have it broken up by the perfect defensive technique of the DB, unless you're watching an SEC game on CBS and Danielson is on the call. The SEC is just that good, you see.