Welcome to the Munkapedia community review series in which you are the critic! This review forum series is for the new ALVINNN!!! and The Chipmunks episodes that have aired at least in English four per forum thread. The series seeks to focus on your thoughts so avoid going too much into the plot details here.
My favorite of these episodes is probably The Wall because there were so many moments where Jeanette and Eleanor were sharing spotlight, and I liked how they were trying to help Alvin. Besides the numerous things in this episode that prove they're in high school, there were also some very funny moments, especially from Eleanor like her quote "I don't believe in cur-zez." And as for that survey scene, I can't explain how funny I thought it was; they should've made the episode just about that.
Ballet Boys would come in a close second for this batch in my opinion. My favorite thing about it was Eleanor helping Alvin learn ballet, it was such a cute Alvinor moment.
Baby Mama Drama had an interesting concept of the Chipmunks and Chipettes taking care of those robotic baby dolls that middle schools and high schools use to teach child development. I most enjoyed the part where Slammer/Cuddlebug (or Slambug as I like to call him) went on a rampage and attacking the stupid school humans, leading to another great Eleanor moment where she (almost) goes toe to toe with it.
Oh Brother Where Art Thou had yet another funny Eleanor moment when she suggested that they put Alvin and a straight jacket and give him anit-crazy pills. Although I'm still a little confused about the part where Simon was pouting in saddness about Alvin never wanting to see him again, I thought he was less emotionally sensitive than that. And I laughed about the Star Wars/ Trek references Alvin was making.