Right now GSync is more expensive (custom electronics) and has a better experience (consistent, often wider sync ranges) but long-term FreeSync is going to win because it's a VESA standard (VESA Adaptive Sync) and cheaper. You can often get a FreeSync model for the same price as an old plain monitor, GSync is usually a $200 increase in price.
The points you raise are all true though, the PC experience is not optimized for a 10 ft UI, and the performance tuning is often not as good (although PC is usually pushing a lot more pixels - many consoles render at 720p and upscale, whereas 1080p is standard and 1440p/4K or supersampling are common on PC). The other thing that bothers me is that every PC game is tied to an account somehow, so you can't buy/sell used games.