Drivers? Really are we not done with this cliched line lol! Look at the Nvidia forums and check all the driver issues occurring right now, with that info I could go around acting like Nvidia drivers are terrible as well. The reality is neither set of drivers are 'Good' they both fluctuate and have problems.
So true. nVidia has even killed cards in the past by botching the fan controls. About the worst I've seen from my radeon(s) is the black screen at wake bug - and unless the card is unstable its usually fixed after a bit of tinkering (disabling ULPS always did the trick for me).
nVidia has a slight feature edge in their driver (SSAO, DSR), but if you already dabble with mods and sweetfx then that point is moot as well.
Drivers are certainly still a factor, but in the end its best to look at benchmarks from games you want to play to see what gets you the most performance and quality for your budget.