I think what you need to get through your head is this: Nvidia, Intel, AMD its all the same to me, they come in different coloured boxes and they have different driver UI's, but in the end they all do the same thing.
Beyond that DLSS is irrelevant to me, Ray Tracing isn't, that's why Nvidia are still an option to me, they just do it better, at least with the current crop of GPU's, VRam also matters to me, so i'm torn between AMD and Nvidia, which ever brand i end up with, i don't know, i honestly have no idea, i am looking at both the RTX 3070 and the RX 6800 and i don't know which i like more.
If i wait until the next generation, and i'm in doubt as to weather its worth it, power consumption may come in to it, because come October we could all be paying 60 to 70p per KW hour. You can under volt any GPU, or CPU, in high stress loads my CPU's cores pull 80 watts at 4.7Ghz, down from 105 watts at 4.6Ghz, a 12600K pulls 200 watts, i'm never going to get that anywhere near my current CPU, and that's the point, a high power consumption chip is always going to consume more power than a low power consumption chip. So the "but you can under-volt it" argument applies to everything, so it really doesn't apply at all.