The issue you are having is that for albums, most played is not calculated by number of track plays, but by total time of the album tracks played. If I look at my top 25, there is a disproportionate amount of opera CDs. Most of them I have only listened to once. But, they count as three hours of album playback. While the CD I play 1 track from everyday and has a play count of 30 is not listed in my current top 25 of albums most played.
Now, if you go to tracks, they are organized by actual counts. I have brought this up before and I think there is a feature request somewhere to let us choose how we define “most played”, including allowing us to set a time-frame. So most played in the last week, last month, last year, etc etc.