Some SABR-metric stats are overrated, while some have real value. I think WAR is an extremely overrated stat as it somehow had Zobrist as the second most valuable player in 2011 and this was when Bautista, Kemp, Ellsbury, etc put up ridiculous seasons. That right there shows how flawed of a stat it is. Not sure if OPS, WHIP, and RC are considered SABRmetrics but I think those are valuable stats.