Are you looking for a last ditch hideout piece or a utility rig? If the latter, go with the Woo and double grind if you want. Mine first Woo is on the way, paracord wrapped, and is ground chisel as I intend to use it not as a utility knife but rather as a last chance get out of dodge knife. The extra penetration quotient of the slimmer double grid may be offset by my rage/ terror enhanced slam with the knife. figure that I want the thing to stay in one piece if I use it to dispatch bad guys (Cougar, quit laughing at my hipocrasy here!)
Utility, either out to be fine, unless you want to be doing really delicat point work, in which case the G-45 will prove a better design.