Here's a good quote I heard a long time ago:
"Jesus could send a bar of steel down from Heaven, but it would only be as good as the heat treatment it gets."
In other words, it doesn't much matter precisely which steel you use, as long as it is controlled and manipulated in such a way as to bring out the best qualities available from THAT steel.
You can have a high dollar, oo-la-la, designer, groovy, double-wrap-around steel, but if it's not heat treated correctly, you have an expensive letter opener which can be out-performed by the simplest of steels heat treated and ground correctly.
It sounds like you have just set your foot on the path to discovering the wonderful world of knives and knife making.
I wish you success in your search.