I downloaded the free sample from the kickstarter campaign (an Immortal), and measured him to be 30.5mm from sole to eyeline, so a bit bigger than I would have expected. 28mm from the sole to the mental crease (i.e. the mid-chin), and I'd estimate he'd be 33mm sole to crown, so he's kinda tall. I assume he is a good representative of the rest of the range. As has been pointed out you can resize him as you need.
That's one side of the equation, I don't have any victrix figures to compare though.
