I have both the original flatted cap and the revamped rounded aluminium Hawks, and they both shave well. Making the later Hawk's top cap
rounded, rather than flat planes, was, to my mind, a great improvement, and I think that's the only version now offered.
Other than using AC blades, I personally don't think there are too many points of comparison between the Hawk (and other similar AC razors) and the Occam's.
Another point with the Hawk is that it's very well-priced, thus making it a "reasonable gamble" purchase, rather than a "blue-chip speculation". If
it doesn't suit, it hasn't cost the buyer his shirt.