I never used 'movie maker'. I can only compare IMovie for Windows and Adobe Premiere Elements.
IMfWin is very user friendly and intuitive. Editing was a simple job, WYSIWYG, copy, cut, paste. I can produce professional home videos with IMfWin.
APE is more refined. For example, in APE I can animate an object (a corps counter on a map) along a precise path. In IMovie I can't and I must use a workaround. You need to watch the tutorials to understand all tricks. Toolbox however is bigger than IMfWin.