Spyderco make GREAT fixed blades, and knives overall!
The Temperance is VG-10, while Fallkniven uses VG-10 CORE, but an outter layer of some 440, or 420 steel (Can't remember). So basically the Fallkniven knife would be tougher overall, and yet keep a great edge while at it.
The H-1 series are great, Only thing for me is- I prefer full flat grind, especially in the outer doors. But overall a great maintenance free steel, very very tough.
Finally the Hossom series, made with N690 steel, are all great blades, available in various sizes and can be found for a decent price.
Now, even though I'm a huge Spyderco fan, I usually avoid using them hard, because they're pretty pricey.
I'd get a RAT for hard use. I've got several RAT knives, and they're GREAT knives to abuse. Also, cheaper than Spyderco and Fallkniven as well.
You also might want to look at Becker Knife and Tool, now produced by KABAR. These are even more affordable than RAT knives.
Mind yourself though, RATs and Beckers are made of 1095 and will rust easily.
If you need a knife that will be tough and stainless, get a Fallkniven with the layered VG-10 core steel, or one the H-1 fixed blades.
Either way, with those makers you can't go wrong.