Was very fond of my Benchmade Hunter until I took advice from a few people on-line. As back-ups I bought a couple Mora knives (https://www.amazon.com/gp/product/B00EAL0TVA/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1). Tried one this weekend on a buck and have to say it is awesome, especially for $15. Out of the box it was extremely sharp which my finger can attest to. Can't say how they hold an edge (only been through 1 deer) or how they sharpen. I bought 1 in lime green and 1 in magenta so that they would be hard to lose.
I've used the Buck Folding Alpha Hunter for all four of the deer that I've taken:
I also have a Buck/Cabela's Alaskan 110 with the S30V blade that I've done incidental work with, but I've used the Alpha for almost the entire job because it's a drop point that makes hooking the innards easier to avoid.
The famous B Clip blade of the 110 is back-swept enough to be (in my opinion) ill suited for opening a belly without nicking the insides.
I also really like the liner lock of the Alpha and the Kraton handle (nice and grippy) scales, and the handle base is composed of sandwiched high carbon stainless that allows water to flow all the way through and prevents stuff from accumulating in it, so it's easy to clean up by immersing the entire knife in hot soapy water, which doesn't really work with conventional type handle bases.
I use the Gatco sharpening kit with the blade clamp for all of my sharpening duties because I'm terrible about being able to maintain the proper angle with a regular setup without the guide, but the Gatco enables me to get the blades shaving sharp, which is essential for this particular job.