HDMI is pretty good for most situations. Newest version 2.1 supports 48Gbps bandwidth and 12bit colour. Displayport 1.4 is 32Gbps and 10 bit colour. And Thunderbolt is 40Gbps.
I do still use DP on PC because my GPU didn't have enough of one or type for 3 displays. So 2 are DVI and one is DP.
But the best solution for PCs is single port multimonitor daisy chaining support. That way you only need one cable going between each. At the moment that's only supported by dDsplayport and Thunderbolt, but there's no reason it couldn't work with HDMI. It of the 2 thunderbolt is the easier solution as you just string them together, but eh DP you need monitors with DP in and out ports.
I can't see any reason to use Thunderbolt unless you need multimonitor daisychainng support.
The other issue is Apple are the only one mainly using Thunderbolt. For that reason HDMI and USB C will remain the standard moving forward. There is thr ability to use USB C for video too, but that's limited to 10Gbps so 60hz 4k maximum.





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