These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Earth X
Crowning Moment of Awesome: The main page quote. Black Bolt's swan song. Tony Stark buys the world more time. Reed's bravery and steadfastness. Basically, most of the whole series.
Squick: "With the exception of a few opportunists who anticipated the coming need and secretly bred and sold animal life through the underground, Wakanda was the only known nation where mammal and fowl hasn't been hunted down and consumed. I still feel badly about Howard (the Duck)." The Skull had a roast fowl dinner when he first arrived at New York.
They Wasted a Perfectly Good Plot: Well, more like they just couldn't, what with waning popularity and all. Colossus possessed the knowledge to bring a person back to life using Limbo. When Kurt asks Aaron why he never used it, Aaron answers; "Who says he didn't?"
Also they never explored how Xen was formed. That would have been an interesting story.