A quite boring video :) Made by request.

As far as I know Vimeo changes the frame rate to 24 fps which ads hickups to the stutter so please download and view the original 25 fps QuickTime version which is deinterlaced. I noticed that iMovie '08 exported the interlaced samples deinterlaced although I didn't check "Deinterlace source video" during export.

Download real interlaced footage at canon-hf100.blogspot.com/2008/06/pf25-vs-50i.html

I'm not convinced by the interlaced recordings. All versions "stutter" but I found this is seldom a problem in real life. Also movies in the cinema are 24p and no one complains that action movies would look bad. I think the movie people have their tricks to conceal any stutter (e.g. slow shutter speed = motion blur). I'll better learn from them and stick with PF25.

Please post your findings to the comments.