<Command> + <Tab> cycles open applications, but
<Command> + <~> cycles windows in the current application context
I find this two-dimensional switching incredibly useful for multitasking, whereas Windows just flattens all windows to the alt-tab list, which quickly becomes overwhelming if you're a power user who doesn't like to close windows.
I find this two-dimensional switching incredibly useful for multitasking, whereas Windows just flattens all windows to the alt-tab list, which quickly becomes overwhelming if you're a power user who doesn't like to close windows.