User blog comment:JoPo/The Seasons of Regular Show RANKED/@comment-26948022-20160116011538

Honestly, Season 4 was my least favorite season becasue there were too many episodes focused on Muscle Man and some plots that I felt were either recycled or just dull.

Season 6 is my second least favorite season, though it had some good episodes in it (Maxin' and Relaxin' comes to mind.)