Congrats and good luck with selection, erhodes! Here are a couple features you may want to consider for your selection knife:
- Take something with a large-ish handle. In February, it'll be cold, and you'll either be wearing gloves/mittens or you'll have cold fingers. Either way, your dexterity will be compromised, and you won't want to bugger with a dainty handle.
- A decent forefinger guard goes in the same vein - you'll be tired and cold, and you'll want a knife that you can use without giving it too much thought for basic safety.
- A knife that opens easily with gloved fingers may be quite appreciated.
- A knife that's easily maintained is also a plus. Like others have said, you'll have plenty to think about, learn, and overcome, and fighting against your knife is wasted energy. You can take this different directions - get a knife with high wear-resistance steel so you don't have to sharpen much; get a knife with softer steel so you can sharpen it quickly and easily; get something partly serrated so you've got a usable edge during those days when you can't spare the time to sharpen your blade; get a stainless steel so it's not rusting; get a knife with a good coating... and so forth. I know what I consider to be high maintenance (a knife that dulls too easily) and what I consider to be low-maintenance (a blade with decent edge holding ability that's not so hard I'll chip it or am afraid of it snapping.) Get a knife with a blade that places no extra emotional stress on you.
- You'll definitely want a knife with a reliable lock that won't jam when dirty and/or can be cleaned easily.
Final thoughts before listing knives: to me, serrations will be unnecessary because you'll have a multitool that probably has a serrated blade, as well as a plain blade, in the event your main folder bonks.
What will you have for a field sharpener? I have a DMT two-sided diamond hone with rough and fine diamonds, and it's my go-to for fixed blades and folders alike. The stone folds into the handle, and the package is around 5" when closed up - small, light, manageable, and effective.
I can't readily think of a knife that has ALL the features I would consider, but many come close:
Dendra Deer Hunter or Defender (I've read nothing but good about them)
Ontario RAT I (cheap, great blade geometry, surprisingly tough)
Cold Steel Voyager/Recon I/American Lawman (pronounced forefinger guards, AUS 8 which I've found to be an acceptable compromise, excellent lock)
Spyderco Manix 2 XL (nice and big handle, easily opened with finger hole, good edge holding)
Spyderco Endura (a friend went through Marine boot camp and swears by his Endura)
ZT 0560 (my favorite of the bunch, although it's also the most expensive)
Benchmade Adams - THICK handle, but a rock-solid knife
One last, enterprising thought - if you were to take the time to e-mail the owners of a few knife companies, like Lynn Thompson and Sal Glesser, and tell them what you're doing, I wonder if someone would want the good mojo and would give you a freebie
Again, good luck!