here are my thoughts on maximized windows. In windows it makes sense to have maximized windows as you have the task bar down at the bottom of the screen. The task bar works kind of like tabs and you can easily switch between windows using that. However for maximized windows to work properly you would need something more like the taskbar. The dock, in the way it currently works, wouldn't work for this as you cannot see each window displayed in it, simply the applications. So if all of your windows are full screen then you would have a very hard time switching between them, without having to minimize, maximize, command tab, ect.
So unless Apple makes Mac OS X work and look just like Windows there is no good way of implementing maximized windows.
I use full screen all the time because:
1. my screen is only 13"
2. i use the dock
3. i use the expose <-awesomeness
heres what i hate, press the green button on itunes lol