There is a lot that could potentially be added to this sheet but I think for now it does a decent job at describing my preferences when it comes to vore and what I like most about it. I did switch around some categories and added a couple things for the sake of being thorough in the description below though.

If I had to summarize all of this I will preface by saying swallowing / neck and belly bulges are pretty much my favorite thing about vore, which that in itself influences a lot of this. Digestion can be good too depending on the details.

Blue Heart = My favorite
Green = Like
Yellow = Kinda Like / Don't Mind
Red = Dislike / Makes me uncomfortable
Black = Indifferent

These are just preferences, I don't judge anyone for theirs and understand everyone is different in that regard, these just happen to be mine.

Vore Types
Oral Vore: My favorite kind of vore and my go-to. Pretty much the only thing I'll be drawing here, though I don't mind tail vore necessarily.
Tail Vore: I don't mind tail vore. A tail maw swallowing a meal can look similar to regular oral vore after all (at least at first). Though I probably will not draw it that often, I could see myself having a character or two with a tail maw in the future possibly.
Just about everything else: All the other types of vore don't really feel like vore to me if that makes sense. I can tolerate absorption okay (if the pred in question is jelly-like and translucent, that can be kinda interesting), but the rest make me a little uncomfortable. I also am not into any of the NSFW types of vore.

Soft Vore: The only kind of oral vore I'm into.
Hard Vore: Anything involving chewing or not ingesting the prey whole is going to be a no for me.

Willing vore: I find willing vore, especially willing prey rather endearing. In that sense the act of eating another is almost intimate. Definitely my favorite.
Unwilling vore: I don't mind unwilling vore, but it depends on the level of unwillingness the prey is exhibiting. If it's a cartoonish, annoyed/frustrated kind of indignation to being eaten that can be amusing. If it starts to cross into the threshold of screaming and crying for help and begging not to be digested however, that puts me off a bit. Then again, if the pred is more dominant I might not care as much. Depends on my mood and the situation.
Unaware vore: Since I like works that involve the pred enjoying themselves the most I don't really care for unaware vore. It can be comedic sure, but I don't get much out of it besides that.
Unwilling -> Willing I don't like this as much as regular willing vore but it's better than unwilling.
Willing -> Unwilling The idea seems distressing. I don't like it.

Neck Sizes/Types
Throat Color: Despite this being listed I really haven't seen this around much. Don't mind it though.
Thick Necks: I assume this refers to the neck bulging out both ways (not just the front). I haven't seen this one much either with the exception of snake preds but I like it enough.
Normal: Not sure what other options there would be as the ones listed here I feel are somewhat uncommon. Though I prefer bigger prey/bigger neck bulges besides that this option would be my favorite of the three.

Belly Sizes
Micro: Since my favorite things in vore are throat and belly bulges I'm pretty indifferent to micro vore. I can understand the appeal to an extent, but like most things in the indifferent category it's simply not my cup of tea.
Beerbelly: Though a little on the small side as far as belly sizes for me, as long as the prey makes some kind of bulge I don't mind it, especially if there are imprints.
Pudge: Still a little on the small side, but better.
Gut: This along with same-size are my favorite belly sizes in vore.
Same-size: This along with a decent-sized gut are my favorite belly sizes in vore.
Larger Prey: Feels just a little too unrealistic to me honestly.

Belly Types
Squishy: Don't have much to say about this besides that it's my favorite of the three, but the other two can be good as well depending on the piece.
Imprints: I do like imprints too, especially in willing vore. I'm never one to turn down a good belly massage from within, after all, I am just a pred. I have my needs.
Too Tight: I think this can be good too depending on the circumstances. If the prey is very unwilling combined with graphic fatal digestion I'll get a bit turned off but otherwise I like it. The user Cownugget (and Radarn) does a lot of good work with this category in my opinion, even if a lot of their work leans more towards unwilling.

Outcome
Belching/Burping afterwards: I'm indifferent. I know it's pretty common in vore so I still might include it in some of my works but I personally don't get much from it.
Safe/No Digestion: Yep. Good stuff. Don't got much to say about it.
Gooey Digestion:: This can be just as good as safe vore if the prey is willing, as I do like some aspects of digestion, such as the prey contributing towards the pred's well-being and greater good. Even if the prey in question is a little unwilling it can still be nice, but depends how much.
Hard Digestion: Similar to what I said about hard vore above, I'm also not into graphic digestion. I'm okay with alluding to it with a skull or something being burped up afterwards, but that's about it.
Full Tour/Disposal: Since NSFW forms of vore make me uncomfortable this does too.
Endo: This is fine. Maybe in hindsight I should've made this one black as I don't get anything out of it but I think for the sake of showing the prey is alright / releasing them afterwards I think it works fine.
Reformation: Although cartoonish I do like the idea of this one. Especially if the prey comes to rub the pred's belly and help them digest the rest...
Weight Gain: Some weight gain can be good / fun, as long as it's not over the top.
Sentient fat: Eh. Not quite my thing but it's alright.

Original guide can be found here! It does feature NSFW vore / content though.

I believe that's pretty much everything, hope that helps clear things up as to what kind of vore art I'll do in the future. Or what I'm into in general~