On the note of heat, AMD and NVIDIA are pretty much equal this generation. On terms of power consumption NVIDIA (at least with the 680) is actually doing better than AMD's lineup.
Performance per dollar can't really be judged yet since only the reference flagship has been released. Give it another few months.
On terms of drivers, NVIDIA always is ahead of AMD. AMD/ATI has always had issues with drivers on the Windows front, but when it comes to the Linux front there is simply no competition, NVIDIA wins hands down. AMD's open source implementation is getting better but it's nowhere near NVIDIA's proprietary. I haven't actually seen a comparison between nouveau (NVIDIA open source) and AMD's open source yet, though. Must research that.
I'll also say that price/performance-wise, NVIDIA has had two major killers in the past two generations, namely the 460 1GB (non-SE goes for $120 or less now, I've seen them as low as $90) and 560 Ti. Anything higher and NVIDIA tends to be more expensive but at the $120 and $220 price points, NVIDIA easily takes the lead.