For a PC gamer like myself, 2000-2007 was the golden era. Crysis marked the very end of that era, and we only got crap ports after that due to rampant piracy making all the devs move to HD consoles instead. It took a long time to fix that, probably most of 2010's. Looking back, I guess Steam's largely to thank for that, and the console architectures converging around AMD hardware and Unreal/Unity. You could argue that this convergence has made all of gaming better overall, but you could also say it homogenized things and as the market has grown its gotten more stale in the AAA space too. Maybe that's more of a 2020's problem. There certainly was plenty of great games sprinkled around 2010's too. So it's very hard for me to say which decade was better overall personally.