[emehrkay]

Call me strange, but I prefer the old maximize. It only took up what space was needed for the window to not scroll horizontally, but did a full vertical. This had a few advantages for me: 1. I can see, and interact with, all of the other windows that I have open in the bkg without too much context switching (command+click to interact without giving a window focus) and 2. since I have an ultra wide monitor at work (and a 27 inch iMac at home), full screening for a browser or text editor is wasted space when I needed reference materials open too.

Apple's own iTunes app breaks a lot of pre-defined ui behavior -- cannot double click titlebar to minimize, the strange mini-mode, and it doesn't quite respect the screen boundaries. I just prefer for things that I use often to have an expected, common behavior.