I still don't understand why people talk about power consumption or perf/watt if we're looking at current CPUs that aren't either low-power/mobile or server/render farms.
Any content creator that invests in either a high end "regular" platform 9900k/2700x OR an HEDT x299/x399 platform will generally not be as concerned with power usage compared to pure performance. These businesses (or people) buy high end chips for the performance. Saving time saves more money than saving power.
So again; why the talk about power consumption relative to performance?
I too find this somewhat odd - it's like people arguing over fuel efficiency between performance cars... it's definitely not the most important metric for 'halo' products that target outright performance over maximum efficiency.
The difference in actual power usage between a fully loaded 9900K and 2700X (or TR/SKL-X) really is quite negligible in the grand scheme of things, especially since the vast majority of people don't run their CPUs at full bore 100% load the majority of the time.
I think it all comes down to the fact that people like arguing for the sake of arguing and to try to find 'weak points' in their 'non preferred' brand.
Ultimately I think the 9900K is a great piece of technology let down by an inflated price and lack of availability. Sure, its power hungry, but thats because it has been pushed to its limits in terms of frequency, and its hard to argue that the extra power is being wasted when it actually has competitive performance/watt to the 2700X.
It hangs well enough with the 1920X/2920X (and 7900X of course) that its legitimately an alternative to those HEDT chips. It's not the outright best performer from that bunch of course, especially in total MT throughput, but it represents an ideal mix of strong ST and MT performance, along with market leading gaming performance. Now if only actual prices would come down towards the MSRP of $488 and you could actually buy the damn CPU, things will look a lot better for the 9900K.