Haven't tried CS:GO, but do you think it's related to being on console + PC?
Coming from HL/HL2/CS, the controls are very very tight, but over the last few years it seems like most games are always xbox+ps3+pc and they never seem to be that great for PC. Either consoles get away with a lot worse controls, or the ports/PC-versions are just worse quality :(
P.S. I will say an example for me wasn't CS:GO, but some of the newer Call of Duties. Which is ironic because the first Call of Duty back on PC was actually one of the few games that could contend with Valve-quality FPS controls (I felt).
I can't agree more with SMB's daddy, movements are the most important thing in the game. It's the core.