I vote RAT-1, its a little on the big side and I actually prefer the RAT-2 for EDC myself, the Zancudo is identical in build quality to the RAT since they are made by the same people, the frame lock just doesnt speak to me like the liner locks on the RAT's do.
The SOG is a fair knife for EDC, though the quality can be spotty at times and its the least reliable knife listed, I have an older one and like it for dirty jobs, but the action is finiky and requires frequent tuning.