>In OSX you can only resize a window in the bottom right corner, in Ubuntu I can resize from any corner, or I can hold Alt and middle click anywhere near a corner of a window to start resizing it. No more hunting for the resize sweetspot.

In Lion it's possible to resize from any window border.

I don't know what these other complaints are. Personally, coming from Windows & Ubuntu, I just fell in love with the way everything just works in OSX. I guess I'm not a "power user" though.