I can certainly sympathize with lines drawn over uneasiness. I have mine and they're not far from this.
I guess where I differentiate BB from 24, The Shield, etc. is the surgical use of violence, shifting loyalties, POV conflicts, etc. to tell an overarching [morality?] tale. There's hardly a gratuitous use of conflict in the series so far (a trait shared with The Wire). Look at the individual deaths in the series. Each more morally indefensible than the last. They're deliberating taking steps down. It reminds me of David O. Russell's Three Kings - a war film where every bullet had a purpose. I'll go deeper in an uncomfortable realm as long as it's justified, though there's still a limit.
And probably equally amazing (and related) is the old good guy/bad guy bubble structure. The Godfathers operatic tale is all about that. Root for Corleones 'cause the other families are even worse. Scorsese did his take with Goodfellas by popping the bubble and bringing the public in. BBs weakness may be avoiding the street users (with the exception of a little ATM tinkering), but I love the shifting multiple bubbles on various levels. Walt, Jesse, Skyler, Hank, Mike, etc. are each others gardian angels at different times. And it rarely feels like "A ha, they're going for gray!". There can be TV tricks, but overall it's just strongly written conflicting POVs (yet, never forgetting the 'downfall' main story). It's pretty amazing. I really don't know if the Walt or Hank character transformation is more fun to watch. Hank was the opposite of good in the first season "I'll take care of your family" incredible scene. Not exactly evil, but so very wrong. Hank and Walt, a double helix.
EDIT: We live in an interesting TV time. The Sopranos was so good, who would have thought we'd have multiple series (Wire, BB) progressing past it so soon after?