I use 1075 and 15n20 or 1075 and w2. I will use 80crv2 and 1075 and 15n20 in the future.
I know, you don't pattern weld. You should pick any of those steels (except w2, which I use for edge-holding but never the whole body of the sword).
Probably, you can't get 15n20 in thick stock (unless...