I don't hate Cold Steel or Lynn Thompson, but I think a knife like a Spyderco Manix 2, or a ZT 0200, or a Benchmade Griptilian would be much better.
Aren't these just pocket knives? When you say "much better," what is your criteria? The Rajah II is larger, the knife is better designed for cutting vegetation and has greater reach for self defense. The blade is stronger and the recurved blade is better suited for most cutting chores. The blade has superior penetration capability due to the size of its handle and the blade is easier to sharpen in the field. Finally, the Tri-Ad lock on both knives essentially make them as strong as fixed-blades. In other words, my criteria includes size, cutting and piercing abilities and ease of sharpening and both knives would appear to be superior for self defense.
While the knives you mentioned are arguably superior in blade steel and materials, edge retention may not be the first thing one would think of for a bugout bag.
The highly regarded Sebenza commands far more money than a Rajah, but in a national emergency where one might be on the run or in the wilderness during an emergency while awaiting rescue, it would be the Rajah that would be regarded as the more valuable tool. I don't say that in any way to degrade the Sebenza (I've done enough of that in other posts), but criteria has to be taken into account.
There's not one of the knives that you mentioned that I wouldn't happily send you my Rajah for in trade; however, should circumstances go South (I've always hated that term), I want the biggest, strongest badass knife that will cut, slash, slice and slam I can find. I also regard the Spartan as an extremely viable knife. But the Rajah would have to beat it by a smidge. My bugout bag already has too many knives, including a Carbon V Recon Tanto, a Böker Plus 440C spearpoint and a Spyderco Native. My wife's bag has two Cabela's Buck Alaskans, one folder and one fixed blade with a wooden handle, both with coated S30V blades.
If I need to bug out in a hurry or if I go backpacking in "Bigfoot" country in the great Northwest (something I've yet to do) the Rajah is going to be my first choice rider. Just my two cents.
This beauty is my Rajah I, a knife I bought three of when they
were being discontinued. They're wonderfully made and the blade
is polished. The frame is milled from 7075 aluminum and it sports
finely polished G10 scales. (The laminated tape is still on the bolsters.)
I'm sorry I got just three.
This model has a chromed clip and stainless screws, which I wish
all knives had. (I hate it when the black paint starts to wear.)
.