For resort use, when in doubt, go heavy hitter core (other than Powderboard, Protest or BPS super fats). Praxis run on the light side to begin with, and with this crowds preference for heavy, damp skis, I think many would enjoy them with the HH. You hardly ever see a review of a Praxis ski on here where someone complains about them being too heavy or lifeless, but you often see talk of excessive chatter/reactivity.
My everyday touring ski is a 182 skinny Quixote with the heavy/carbon/veneer construction. If I could do that ski over again, I wouldn't opt for a lighter core. It's light enough with a light boot and binding, the carbon makes it really energetic in soft snow (which I love, I hate how lifeless most skis feel in powder), but the heavy core is beneficial when the snow isn't as ideal.
I've also owned and skied 188 MVP's in flex 4 enduro/carbon/nylon and 187 Protests in flex 3+ enduro/carbon/nylon, and a pair of early 190 Powderboards.
I find the enduro core to be too light and reactive for inbounds use, particularly in stiffer flexes but I also weigh around 155 pounds and am 5'7". I feel like skiing is damn near a different sport for the 225+ pound crowd, so if you fall into that category, disregard.
I added a standard width Quixote with enduro/carbon/veneer for this coming season as a deep snow touring ski. It should weigh about the same as my skinny Q with the heavy core, while offering a little more energy and buoyancy in the deep'n'light.
FWIW, I love the rocker profile on the Quixote.