I like the HS scale better simply because the cutoff from being failing to subpar is higher, and thus to truly be great you must aim higher as well.
..............You could be like the US Army where you are graded on the ten point scale for actual academics, but anything below a 70 is a failing grade. THEN if you do fail and retake the test if you pass the retest with a 100, you only get a 70 percent.
I think this is why I am somewhat harsh in reviews. Prometheus and Resurrection for example. I hate them, but as movies I'd rate both at probably a 55-60. But that is failing to me in every standard I use to measure.
As for this series. Bought the TPB. It is EXACTLY the type of comic I would think a superhero comic book publisher would make in the alien verse. I did like them bringing in some elements from Resurrection into the story, and it is interesting that they are already trying to do their future setup on a story arc villain, but it feels VERY Marvelish in its presentation with not just the artwork where everybody looks like the same dude over and over again, but that they are TRYING to setup a future villain.