Well most everything shown has not been a skinning knife...I have been on a quest for about 15 years to find the best skinning knife for deer. I have used most of them available from Randall made knives (Alaska Skinner and the Gary Ward model) to cheap knives. I have pretty much settled on the Buck 103 with the Randall a close second... main difference that I have found is the weight of the two and that is why the buck 103 ends up the most used. I did specifically buy a 103 in 5160 steel for ease of sharpening.... My friends laugh at me at deer camp because I have used so many knifes over the years and generally skin most peoples deer at camp... no telling how many I have skinned over the last 15 years or so... With this in mind, I am talking about a skinning knife not one for gutting as they are different blade designs.
For the whole process, I use a dedicated Gut hook to start off... and 90% of the time we never even gut the animal but leave the chest cavity whole.