One advantage for us and for them is that Israel is not hampered by political correctness.
Are you sure? Arafat is still breathing. How many times has the IDF moved on Arafat's compound without killing him (which they could easily do)?
When we go into Iraq, what do you think will happen if we find out Saddam is located? Same goes for UBL. If we somehow managed to take him alive, we'd hang him at Gitmo.