I want every window to open as large as possible.
I've come across a lot of people like you. They can't work unless everything else is completely hidden.
Which makes Windows the perfect environment for you.
Macs have always been user
multitasking systems. They are design to let the user multitask by seeing other applications open in the background. Most (good) mac apps give you drag-n-drop
abilities between applications, so over sized windows for no other reason than to take up that space are not part of the design of the environment.
And it should also be noted that the implementation of full screen windows in Windows was not a feature
, it was a requirement of the environment. Windows apps are contained within a root window which is the instance
of that application. This is a legacy limitation from when Windows was a GUI shell to run applications in DOS.
I'm not saying that there is anything wrong with liking full screen windows, they are very good at keeping people on task (great for secretaries and the like who use one application at a time). It is just that the Mac environment is designed for people who multitask.
Windows is ideal for one type of person, Macs for another. If this is that important to you, you should consider another platform.
Otherwise, learn to take advantage of it rather than fighting it.