SAS and GSG9 would win hands down
I mean, just look at them:
[img]http://www.dodstudios.net/uploads/uploads/action2saswindow.jpg[/img]
SAS
[img]http://www.dodstudios.net/uploads/uploads/actionmp5gr.jpg[/img]
GSG9 (well, actully SEK, couldn't find any GSG9 pics)