I actually like the pre-war one better than the post-war one. I use my Pre-War breaker on the test bench for fast action.
That being said, I don't think either of these are the best choices for modern stuff. Personally, I think the PH180 is more than sufficient protection. I'd probably lose the Z-1000 brick with it's slow breaker and add another PH180.
My pre-war #91 trips right at 3A on the low current tap and 4A on the high current tap. This doesn't appear to be sufficient headroom for normal operation.