I prefer werewolves, too, simply in regards to aesthetics, but I see how either could be seen as fitting to the LHP.
The issue with vampyrism is that it implies an addiction, a dependance on other beings, which is something most LHPers would try to avoid. The kind of spiritual vampyrism I so far read/heard about (mostly by one V.K. Jehannum) however seems to simply be the concept of taking spiritual energy from other humans, without that leading to any addiction.
Werewolves as a concept actually seem pretty RHP to me, now that I think of it. They symbolize the suppression of a bestial nature which then nevertheless overwhelms one once a month. However, if instead of an involutary, forced transformation one rather tries such intentionally (or at least semi-intentionally in order to come to better terms with parts of one's subconscious), then also that sounds like a worthwhile LHP practice and would then probably be called spiritual lycanthropy. From what I read about it so far (which isn't much), it works basically like an invocation or intentional possession.
Hmmm, so not all evil is personified as left handed?
The definitions of left and right handed are so manifold... A main difference I would see is not how "evil" or whatever one is, but where one puts one's authority in regards to spiritual and moral questions - outside or inside of oneself.
Hmm, draconian mostly just means really old in occult circles, not necessarily harsh. Those punishments are draconian because of age, not moral validity.
Draconian seems to mean harsh due to an ancient Greek law maker of the name Draco who made rather harsh laws.
From my impression it nearly always refers to dragons in occultism.
Oh, okay. So, I seem to remember I heard from a guy named E.A. Koetting that older deities are more powerful. You think that's true?
I can't tell for sure how trustworthy his stuff is (I heard both opinions from occutists I'd trust more, but more positive opinions), just, he is very very commercial, so some of the things he says he only seems to say to get your money. If you keep that in mind, his vids are fine (if sometimes rather cringeworthty).
Regarding whether older entities are more powerful; I see several reasons why it could be (more people who work with them; them being more experienced; them having accomplished remaining in popular memory for such a long time;...) but I don't know. And who knows, maybe also some "new" deities are just old ones under another name?
Isn't Michael Kelley involved with the draconian tradition?
Yes. I've read stuff by him, but none by Asenath Mason so far.