Very cool knives! Damn.
I like a very small, short, single-blade featherweight folder by Schrade for gutting. I can sort of wrap my finger around the back of it, over the tip, to prevent a popped stomach (that's something you do ONCE!). Anyway the blade can't be more than 2" long and it weighs nothing and cost like $15 or something... and it works.
I have a Buck Vanguard, with the rubber handle, for everything else. Seems to work but isn't in the league of many of these knives you guys are showing!
I'm still learning how to gut a deer. Self-taught and I've only done 16 of them. There's enough time between hunting seasons that I have to re-learn a thing or two every year too <g>.
I must confess to once improvising a Butt-Out type "tool" out of a stout blackberry vine with big thorns. It did work. I'm pretty sure I looked around to make sure nobody was looking before I used it though. :-) It just seemed... wrong.
