If you have the budget for an OLED then thats what you should buy, in this order of descending price until you hit what you can pay:
Sony A90J
Sony A80J
LG C1
Many more here will explain the reasons to buy, but make sure to read every post and then do a bit of your own research/review scanning to find out why people have the opinions they do. Check enthisiast reviews + aggreate their results, don't just trust just big websites who depend on advertising from said companies because they may be not giving you the true/whole picture.
If you want a TL;DR though, main reasons why Sony gives overall better quality than LG is because the motion, image processing/upscaling, gradient smoothing (ie debanding, which is very important with OLED due to its awesome contrast, so flaws in the source are more visible), tonemapping, UI and out-of-the-box colour accuracy are superior with Sony.
The LG has lower input lag, VRR and more HDMI 2.1 ports, here are my thoughts on those advantages:
You don't need to even ever consider the input lag of a modern TV from these brands for one second if you don't play very seriously competitive online games like FGs or the like, VRR is broken in some fashion across all current LG OLED models so thats why Sony hasn't put it on their sets yet and for the 2.1 ports issue just buy a HDMI auto-switcher, it will change the input automatically so you don't even need a wireless remote for it. Sony will have 4x 2.1 ports on their sets next year probably.
PM me if you want more have a more detailed discussion about it, I will tell you what I think is the best but I'll also realistically consider the content you will watch, what environment/conditions you'll mostly be watching in, your budget and what you actually need/want from the TV.
Edgy isn't it.
I've had Sony, Phillips, Samsung, LG (pre oled) and honestly, the Samsung units piss all over them bar Sony for *pre calibration* out the box colours.
Its just a shorthand way of saying:
"When talking about LCD, Sony is preferable over Samsung because when you look at comparable models they have a much better motion algorithm, better tonemapping that preserves overall picture brightness rather than highlight detail (most consumers want a brighter overall picture ime, over a duller image but with more detail in bright highlits, like the sun), produces a more natural looking image closer to the creators intent, has a better UI (that gets upgraded years down the line unlike Tizen), supports Dolby Vision, etc, etc."
There more but I think I've made my point anyway, the benefit Samsungs have is they have a higher light output and contrast values on test patterns, thats where they excel.
To the 2nd part: If we don't know what models you compared then its a bit of a meaningless statement. You could've owned an edge lit IPS Sony and then upgraded to a 5 years more recent FALD VA LCD Samsung and the difference in contrast would be massive, but its an unfair comparison in terms of panel type and the price difference was also massive. I appreciate thats "not your problem" but enthusiasts are evaluating objectively based on what came before, not based on how the models are marketed.
So of course Samsung TVs don't suck objectively, many of the models are great TVs, but comparably overall they are 2nd best in LCD to Sony and they don't make OLED so they are infinitely last compared to Sony and LG in 1st and 2nd place (when you're gaming, if no gaming at all, I'd put Panasonic 2nd and LG 3rd but this thread is for a "gaming tv").
When people ask "whats a good TV" they presumably don't want all the nitty gritty details and just want to be told what to buy, or else they would've gone and done the research for themselves.
So in this case, if someone is asking about buying an LCD (OP sounds like they will buy an OLED anyway) its way easier to say "Samsung sucks, buy a Sony". Its not nuanced but the OP wasn't looking for nuance afaics.
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