The back end of the spine, and the forward end of the grips align nicely to let you enjoy the ridges Benchmade cut in inviting your thumb to press down into harder cuts. The grip slabs and choil are nicely shaped to provide a firm hold even for big hands. There is a significant lanyard loop and a small surprise in the butt of the knife: a window breaker. Designed for tip up/pivot down carry, I find this knife ideally suited for a pants pocket.
Now, with all that out of the way, how do they cut? Bearing in mind that neither of these knives was designed to be your survival or combat blade, the only thing I tested them on was various material that should reasonably cut with them: string, twine, nylon rope, some 550 cord, and some ½-inch hemp. Both knives cut through all of the various materials without issue, although the slightly longer blade on the Vex made some of the cutting easier. The serrations on the Ally made short work of the thinner materials. While pushing hard into the cuts on the rope and 550 cord I tried to pay attention to any play that might show itself at the pivot point, but couldn't find any. Both knives seem quite sturdy, given their size and designs.
All in all, I rate them both as good knives. I like the Ally better for everyday carry, but the Vex would be well suited if you like the tip down and thicker grips.