IMO these two steels are close in performance but it also depends a lot on heat treat of the blade. AUS-8 should have better edge holding because of the addition of vanadium carbides to the steel but I think 1095 is a little tougher and easyer to sharpen. I like AUS-8 but for surivial I would chose 1095.
I've never performed nor seen a comparison of the egdge retentions of AUS8 to 1095. My guess is that the AUS8 may hold an edge a bit better, but that the 1095CV will be tougher. I think the 1095CV will also resharpen in the bush more easily than the AUS8, which might be significant if you did not have a sharpening stone in your kit.
If it were I, I would choose the 1095CV for a survival knife unless I thought I had a significant chance of becoming stranded in a salt marsh.
Aus8 for me. 1095 is on my beaters.Would be OK for a machete maybe..
1095CV is Carbon 5. I bet if you had put that in the title there would be a lot more people choosing it over AUS8