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: Locke & Key
Complete Monster: Sam perhaps, even though he's later shown as being manipulated. Definitely Dodge, unless and until proven otherwise later in the series.
Nightmare Fuel: Dodge, just... Dodge, whether he's in the guise of a normal person or a grotesque skull-reflection. Sam also counts. Lampshaded in this interview with Joe Hill, who stated that for him, the key to writing horror was "....to push the limits psychologically...to bring the heroes, and the reader, into an uneasy, uncomfortable place, and force them to live there a while." Seems to be working pretty well.
Tear Jerker: several moments, but something about Rufus telling his mom "I just want the commander to know if she's ever tired of me, the team will move out at her command. Say the word," i.e. that he'll leave her if he's a burden to her, just seems to have that extra sense of tragedy.
So much in Clockworks. Poor Ben and Miranda Locke's backstory is sad enough, but even worse is finding out what a stand-up guy Dodge used to be.
The Woobie: Ellie Whedon, The Locke kids, Nina....