Come on this is ridiculous. Like I said, other than the absolute most basic elements of the premise and some stylistic similarities, Twin Peaks and Deadly Premonition are extremely different. They have extremely little in common, in fact.
David Lynch, in every movie or show where he has full creative control, always conveys the exact same post-modern theme: that life is pointless, and that beneath the thin veneer of polite society, ultimately everyone is controlled by their deepest, darkest desires and that resisting them is futile.
In Twin Peaks, every single character is a self-serving, conniving bastard in some way. People sleep with each other, exploit, extort each other, want to kill each other, plot against one another, actually do kill each other...
From Deadly Premonition, the vibe, and everything the author tries to tell, is just completely different. York successfully defeats the ultimate embodiment of otherworldly evil by facing his past traumas and demons and overcoming them.
In Twin Peaks the murderer is someone who was just possessed by that otherworldly evil to do bad things. In Deadly Premonition, it's someone who had clear motivations to do what he did, who faced equally tragic past events but reacted by nurturing thoughts of vengeance, and yearning for power and respect at any cost, which ultimately made him fall for a Trojan horse that ultimately brought about his downfall.
For such a goofy videogame I thought it actually had a powerful message and a brilliant protagonist.
I also liked how the game built up a sense of having you gradually become part of a community that you are an outsider in, and developing some genuine rapport with the inhabitants, only for having some of those that practically became friends to you end up stabbing you in the back.