The CS Bushman Bowie was one of the first knives I bought. I loved it when I got it, the handle could use better grip but otherwise it was a solid knife. The design was the main point I got it(along with the price), I like the hollow handle for all the possibilities it brings, and with the fairly big blade it was decent at chopping at brush.
Then after lots of research and reading many threads, I decided to get a BK2. Man, that knife is something else. The blade just feels so solid, nice and heavy, and the blade itself is very thick. Id say its almost twice as thick as the Bushman. The thing feels indestructable, I dont think I could bend that blade using my strength alone, and its nice and sharp. I find its great for splitting wood, which is great when its time to make a fire. The BK2 will make short work of saplings and other plants when making a shelter, plus its small enough that you can do more detailed work. A good knife is a multi-tool in itself, and the BK2 is a very well made knife, Id bet the knife outlasts me.
When I bought the Bushman I also bought the CS Canadian Belt Knife, and I still absolutely love that knife. It was very cheap, but the blade was really nice. Its made with 4116 Krupp steel, and the blade has a nice feel and is very sharp. This knife is very light, barely weighs a thing, so Ill still bring it with me. I like to use this knife for cooking, food prep, things like that, and I save the heavy dirty work for the BK2. You could probably get this combo for under $100, so I recommend it!