As choppers, I'd rate 'em as follows:
1. FBMLE
2. SHBM
3. FBMCG and MOASH (tie and not far behind the SHBM)
5. BM-E
Wish I had a Proto to try out, but I do have high hopes for the Heavy Mistresses.
Mass and balance are key. I think the heavier, more weight-forward blade is going to win the day as a chopper. The various knives weigh: MOASH (26 oz.), SHBM (21 oz.), FBMCG (25 oz.), FBMLE (29 oz.), and BM-E (20 oz.). Of course, edge geometry and sharpness come into play, and all five of these knives were different in both regards.