Last weekend I cleaned and skinned two deer: one with an Outdoor Edge, and one with the Havalon. The Havalon appeared to definitely be sharper. The Outdoor Edge was definitely a sturdier blade. The Havalon blade popped off a couple times; the Outdoor Edge one never did. The Outdoor Edge blade is easy to change; the Havalon one takes some skill, a tool, or both to not cut oneself.
Both were much easier to complete the work with than a conventional blade. Having an extremely sharp blade makes the job so much easier. I don't know what I'll do with all my other knives now besides stare at them and admire their handiwork.
If I had to choose one, it would be close but I would opt for the Outdoor Edge.