While I have to admit that I have the Gerber, I would suggest the Benchmade. (Yeah I know)

I can speak from experience having had to use a Benchmade rescue hook that they are amazing and they do exactly what they say they can. I have a tendency to love the Benchmade product but I bought the Gerber on a whim. The Benchmade seems more "real world" as it has a wider mouth (or appears to) than the Gerber.

If you are wearing gloves the Gerber does take the cake.

All in all when the chips are down, I would go with the Benchmade if you can afford it. If not the Gerber is not a shabby choice.

As for the Spyderco, well normally they are AWSOME and with the dedicated hidden window punch that is also pretty cool

Still I would go to the Benchmade if those are your two choices.