I have the SP2 Air Force Survival, SP8 machete, SP10 Marine Raider Bowie, SP17 Quartermaster, SP47 Camp Knife, SP Kukri. I have pounded the snot out of them while batoning, chopped with em, etc. I have no qualms about saying i would trust my life with any one of the ones i own. They are a top quality, hard use, American made product.
The one you mention is 1/4" thick & sabre ground. That is the one i would choose as well. It is a little stronger with the extra metal & the added weight will help it chop better IMHO. For seventy four dollars, it is a LOT of blade. NOTE: expect to have a custom sheath made for it if you really want to wear it. It will cost a little more than the knife did. It is money well spent.
It has been my experience, that to carry a large blade comfortably all day, you need to choose your custom sheath carefully. Things that i required for mine:
Kydex, but not the thickest stuff out there.
Large drain hole- so it wont easily clog up & can be cleaned out if it does.
Thumb ramp for quiet removal if needed.
MUST be held securely yet with NO blade wobble.
MUST make an audible snap/click when resheathed, so there is no doubt it is secured without looking.
Able to be put on/removed without taking your belt off.
Have a dangler w/HD hardware, so it moves with you & allows you to work, squat, bend, enter/exit vehicles, horses, atv's, etc..
Have a wide 1.25-1.5" elastic leg strap with QR buckle for same reasons as above.
Have grommet holes for attaching smaller knife sheaths to it or accessories or pouches or attaching to packs.
The entire thing must be smoothed on the edges all the way around, no sharp spots.
Hope this helps.