I have not tried Gerber's S30V, so I don't know how good their heat treat is. I have tried Spyderco, Buck, and Benchmade S30V. The Paul Bos heat treat that Buck uses for their S30V is the standard by which I judge all others.
The hollow grind used by Buck is superb for skinning and slicing. The cutting performance is top notch.
That being said, I've never had any use for a gut hook on my hunting knives. Are you sure you want one?