The answer is that "it depends".
If you are going to ski forward pretty much exclusively, don't care so much about variable conditions or groomers, want never to bury a tip, want maximum slarvy-ness, and generally want life uber-easy - then lean toward the Pontoon.
If you want to ski switch, do flippy spinny things, are willing to give up some slarvy-ness for carvy-ness, are willing to deal with a tip you can bury if you are on the heavier side (not that the ski is inclined that way, just that you can - whereas it is damn near impossible with the Pontoon) - then probably lean toward the Hell Bent.
Also, IMO the Pontoon is a bit more forgiving of backing off on speed. From my POV, it is pretty happy to go slow or fast. The Hell Bent seems to be better behaved with some speed.
In short, there is no definite answer. Pick your poison. There are now many reviews of both. Both ski great in Powder. And if you get the Hell Bent - don't let anyone convince you to mount it further back than +6. I'd suggest at least +7, even if you do not particularly intend to ski switch.
Anyway, there is no one answer to the question...