BIT, they aren't a bit alike, the old BERP blade has a thick, forward bulge at the tip that is almost ax-like when seen from above. In other words, the blade chord increases markedly at the tip.
The S-92 (and UH-60M) blade is a swept, anhedral tip that thins out in thickness and droops down the last 5% of blade span.
The S-92 blade has a figure of merit that is about 4% better than the BERP blade (which means that for the same horsepower, the S-92 blade lifts about 5% more weight than the BERP.)