Sticky corners (with 2 monitors) annoy me more. Drag your mouse pointer to the top corner of the screen, trying to take it to the next monitor - nope, it gets stuck.
It goes from annoying to very frustrating when I am trying to click at the top left of the window on my 2nd screen, but someone at MS decided the mouse will get stuck on the X and close my current window instead. I have very good mouse accuracy from years of computing (and video games), so I can click very accurately and this would always catch me off guard until I slowed down my own actions to double check where the pointer is.
There is a setting, but it's not very fine grained and turning it off also turns off other useful settings. I can't remember which exactly, I just know I reverted fairly quickly since it was even more annoying.
In Win7, the one I was thinking of is called "Prevent windows from being automatically arranged when moved to the edge of the screen".
That one seems to be pretty specific, and for me is very useful.
KDE has a similar thing, which can also be disabled. Only thing I haven't figured out with KDE (yet) is how to disable automatically maximising a window after dragging it from the non-primary display to the primary one. That's pretty annoying too. :/
It goes from annoying to very frustrating when I am trying to click at the top left of the window on my 2nd screen, but someone at MS decided the mouse will get stuck on the X and close my current window instead. I have very good mouse accuracy from years of computing (and video games), so I can click very accurately and this would always catch me off guard until I slowed down my own actions to double check where the pointer is.