I go for mostly bang for buck as long as my mini-ITX rig can take the card. Had probably more Nvidia cards than AMD/ATI ones IIRC.
However,having been burned by the deteriorating performance of midrange Nvidia cards like the GTX660 and GTX960,after three years with them I think I will be going back to AMD for my next card unless they balls up.
I think the whole buy Nvidia for Gameworks tagline is a whole load of rubbish. Its the same silly argument when Nvidia pushed PhysX and 3D Vision and you had people like Rollo,finding any chance to push it. This is why everytime I hear people push Gameworks as some reason to buy Nvidia,it makes me feel a bit sick since it was the same thing said about PhysX and 3D Vision,especially after finding out about the whole NV FG.
Yet,for all intents and purposes the effects were never that brilliant - even looking at games like the Borderlands series,Planetside 2 and Fallout 4 and the new TR,none of the effects would influence me buying Nvidia just for them. Then for Witcher 3 which had at least reasonable effects unless you owned a GTX970 and above you had crap performance with Maxwell cards and you were screwed over if you used Kepler. AMD users could actually dial down all the tessellation and get much better performance on older cards and it took CDPR to actually end up doing the same for Nvidia users.
Then the major feature effect for the new TR ended up running fine on both vendors hardware which was hilarious.
Plus when you have an Nvidia game like The Division even with many of the Nvidia features running no worse than the equivalent Nvidia cards on AMD cards(or even better with them off),it kind of starts to destroy the argument that Gameworks is even any argument for buying an Nvidia card. ARK was another Gameworks title which seemed to run like crap on sub £200 Nvidia cards when compared to the AMD ones,which I found out with my GTX960.
Then add the fact Nvidia has still not released an async driver for Ashes,and that is a game a number of my mates want to play at LANs too,since we play Sins of a Solar Empire too.
IMHO,especially with the Nvidia midrange cards seemingly lasting less and less than their AMD equivalents,its starting to become a joke. This was never the case with cards like the 8800GT which were long lasting - the same could even be said for Fermi based cards like the GTX460 and GTX560TI too.
Plus with G-Sync I have zero interest in it - the monitors look severely overpriced and there are far less models. The only reason why FreeSync might even be bought by me is if it was a decent monitor for image editing which happened to have it with hardly a cost penalty and that means a decent 8 bit IPS or VA panel,not the 6 bit+AFC ones.
Considering that FreeSync looks more likely to have a lower cost penalty due to its nature,its more likely I might get a monitor which has it,but it won't be as important as pure image quality.