This is a made up problem if I’ve ever seen one. I have multiple setups with several different OS’s and don’t have this problem with any of them. I mean, really, how much time does it take you to drag the windows to the size you want? Does saving a half second over the course of a day add that much to your productivity?
I also have a macbook pro, and yes, I am in love with her, but that doesn’t stop me from being sensible. I just don’t understand your dislike or confusion with the mac maximize button. There is no mystery, it’s going to grow the maximum size needed for that app. That’s it, it’s not like it randomly changes size every time you hit it.
I’ve been a lurker for a long time on your site (well, your feed anyway) and I really appreciate you sharing knowledge and tips, but it’s time to let this one go dude. I just fail to see the issue.