Richer Yang

It can set that if count the registered member views OR views in index page. 
To differentiate between USER and BOT is by HTTP_agent, and it can set at admin

WP-PostViews Plus

Enables You To Display How Many Times A Post Had Been Viewed By User Or Bot.

JinnLynn

The ranking of your posts. Visit <a href="http://jeeker.net/projects/postrank/" title="PostRank" rel="nofollow ugc">Plugin Page</a> for usage information and project news.

PostRank

The ranking of your posts. Visit [Plugin Page](http://jeeker.net/projects/postrank/ "PostRank") for usage information and project news.

WP-PostViews Plus vs PostRank