And let's be clear, you cannot just group all vodka into one category. There is potato vodka, wheat vodka, rye vodka, and even other grain (and fruit!) types.
Belvedere is one of the most expensive vodkas yet has a somewhat particular taste due to being rye vodka. It's not my favorite but I appreciate it for its unique characteristic..rye vodka has an interesting and wonderfully complex taste. Rye whiskey is quite nice too.
Contrary to common perception, a good vodka isn't supposed to be tasteless - grain neutral spirit does not mean tasteless. It's called a spirit because even after the triple distillation, the "spirit" of the grain would still remain. And not every one is going to agree on which vodka tastes best because it's the same as if I tried to find the best flavor of ice cream.
More important than preference for taste, good vodka has more distillation, less impurities, and thus leaves less of a hangover due to less tax on the liver and other organs.
If you actually want a tasteless vodka you can buy what is termed an ENS, Extra Neutral Spirit. [1,2] Spirytus Wesoly is a very high quality ENS that sells for around $15 a liter. It is a potato vodka made in Poland, 192 proof 96% ethanol. The remaining 4% percent is almost entirely distilled water.
Similar American-made Everclear is 190 proof 95% ethanol produced from corn. In constrast, unlike our Polish competitor, Everclear is sweet, sticky, and has a hint of sickly corn syrup in its taste profile. That 1% difference combined with the choice of a sweet corn versus starchy potatoes, makes for a vastly inferior product. But corn is subsidized in the U.S, so it makes sense from a business standpoint.
If you wish to drink a 96% vodka without causing internal chemical burns, add some filtered water to dilute it to around 30%-40% ethanol. You should notice no grain taste at all - truly neutral. But not very enjoyable, at least in my opinion. It lacks character, rather hollow. Economical though..and has a range of other uses. I personally use it as a thinning agent in my custom e-liquid/vape-juice recipe that consists of about 20% ethanol, 70% vegetable glycerin, and 10% distilled water by volume. I also have it for use in making hand sanitizer and as a safe wound disinfectant.
I wrote a blog post [3] a while ago on how methanol and other alcohols can seep through skin and poison one's body. This is why, aside from ethical reasons, I no longer use deodorants like Old Space Classic, that are formulated with methanol aka denatured alcohol aka wood alcohol. Methanol isn't suitable for food or beverages, making it a cheap industrial chemical, a convenient substitute for ethanol if health is disregarded. Methanol and other alcohols like isopropyl get converted by the liver into formaldehyde and acetone respectively, among other toxic metabolites. Over time, if one continues to use methanol based cosmetics, they are effectively mini/micro dosing a toxin daily, by transdermal means. [4] Sure, for most cosmetics, whether it be hair spray, lotion, or deodorant, it is a rather small dose of methanol, but why consume toxins even in small amounts, if avoidable? The big businesses like P&G are just doing it to make even more profit at the possible expense of your health. Toms of Maine on the other hand, uses ethanol because they actually don't roll dice with their consumer's health. Big biz is always playing shell games with risk reward balances. It's death by 1000 paper cuts corporate directing.
For the same reasons, I highly suggest buying an ENS like Spirytus for use in your medicine cabinet in lieu of isopropyl which metabolizes into acetone. $15 for a liter of alcohol is actually not much more expensive than the price per volume for those plastic bottles of isopropyl. Mind you, HDPE (High Density Polyethylene) is chemical resistant, but lower density plastics, typically the more flexible kind, are vulnerable to reaction with strong solvents, acids or bases. Spirytus is sold in a glass bottle, entirely inert. Anyways, there's so many things wrong with the average risk most of us don't even know we've been subjected to. I think I've sold you on pure ethanol by now..
Hope you understand why vodka is made and marketed the way it is...
[1] https://en.wikipedia.org/wiki/Rectified_spirit
[2] https://www.ethimex.com/blog/2019/07/22/the-complete-guide-t...
[3] https://churchofthought.org/blog/2020/04/25/cruelty-free-deo...
[4] https://www.fda.gov/drugs/drug-safety-and-availability/fda-u...