remove clear sky from that list, it's a stuffstain on the amazing stalker series
You're a fool, Clear Sky was a good game, it had some flaws and the story wasn't very good but there are mods to fix that.
By itself it was a pretty good game and it was an important part of the game play development in Call of Pripyat, without Clear Sky we may not have had the detectors or the weapon upgrade system to name a few.
I hate people who think that Clear Sky should just be forgotten as a part of the STALKER series, it played an important part in making STALKER CoP what it is and GSC will probably take all of the lessons it learned throughout the STALKER series with it and put them into STALKER 2, all the things they learned to do and not to do, Clear Sky taught them a lot about what worked and what didn't in STALKER and that's why it's an important part of the series.
So forget you
