I agree with almost everything you said especially about Hank and Marie. Although I disliked Marie's character more than Hank. For one she was a hypocrite , she was willing to let Skylar go to jail over that gift she stole and wouldn't apologize at 1st. How are you a booster and going to judge Walt for cooking meth,
what are you a more righteous criminal
plus don't forget she was willing to let Skylar take the fall with Walt at 1st before they blackmailed them with that tape.
Marie
As for Hank he was just as bad as Walt, no if ands or buts about it. Walt didn't want Hank to get killed in “Ozymandias” and was willing to turn himself in rather than what went down. The same can't be said for Hank he wasn't willing to cut Walt any breaks or even hear his side of the events same as Marie. You also can't forget the case was closed by his superiors and 90% of the tactics he used to try and catch Heinsenberg were illegal, plus whooping Walt's ass in "Blood Money" and Jesse's in season 3 being over zealous.
And Skylar I think the last ep showed that even through all that went down she still cared for Walt and really loved him. She could have ratted him out when she was on the phone with Marie and not given him the 5mins he wanted for closure. Plus you could see how she still felt for him when he saw Holly for the last time. As much of a scumbag that Skylar seemed throughout the series she did actually care for Walt but protecting her kids was 1st priority.