Been trying your plugin and it looks just what I need: simple and effective.
But there are some basic requirements to get accurate stats.
First, you need to exclude monitoring apps from your visits. Like monitor.us, uptime robot, pingdom, and others. The easiest is to allow the user to enter a list of ip's to ignore. Otherwise you are counting monitoring apps as visitors.
Second, if you exclude admin users you should also exclude admin links from the most visited links list.
Thanks for your work!