I just finished both the K-on! Anime(S1&S2 + Movie) and Manga. A lot of stuff happened in the anime that wasn't in the manga, not necessarily saying it's bad, I actually think it was really good at how they implemented it. I really like the design of the Anime's HTT shirts compared to the Anime's, it just shouts Hoka-go Tea Time you know? Many of the moments in the manga just seemed so short, weren't really lively, and just kinda lacked emotions, maybe it's because I started with the Anime first? I'm kinda bummed out about the London trip not being in the Manga and Azunyan's graduation trip(maybe it's in high school). There's also this kind of weirdness in the Manga compared to the Anime like how Mugi acts towards Ritsu and Mio, and the Mio scenes are really brutal (Panties) but this is more low-key in the Anime. I was hoping to see more panels at their final school festival concert and the time they played Tenshi ni Fureta yo for Azunyan because I feel like it should be really important since it is their last time in the club room. Overall I think the Anime is more fun to enjoy and more impactful than the Manga but that's just my opinion. What do y'all think?