Well, it is a manga where people war against each other. And the most bellicose of groups in the manga is Akatsuki, so it makes sense that most of them should die.
And considering village by village...
Konoha: Sandaime, Asuma, Jiraiya... over the course of 3 years
Sand: Gaara (once), Chiyo (as a replacement)
Akatsuki: Sasori (Sakura), Hidan (Shikamaru), Kakuzu (Naruto), Orochimaru? (Sasuke), Deidara (Saskue)
If you look at the way Akatsuki has operated, they've been able to survive by avoiding direct combat as much as possible. In the case of all of the above except Orochimaru(?), the Akatsuki members let themselves get caught into combat which they should have avoided, like Itachi and Kisame have done numerous times.