I've never handled a Rattle hawk.
Looking at it's design though, it looks far more like a fighting hawk. Sharp all the way around. Not that that is a bad thing.
Mine is more of a tool than a purpose built fighting hawk. Some of the design features on mine that make it more tool like. Are the full length handle so you can choke up on the axe for any task. A spike designed to fit in a master lock for breaking them, its strong enough to be used for digging and punching holes in metal, but pointy enough to still puncture tires. (See video's below)
I'd love to do a run of 3V hawks, but yeah it would price prohibitive to most folks.
There are lots of great options for hawks these days, James Helm and RMJ tactical both make fantastic products as well.