To be frank, I personally felt Aachan's graduation was too grand, too drawn out. I guess I felt this way because all the other members receive so little recognition in their graduation, & this contrast greatly with the glamour & sparkles poured upon Aachan's. I recognize that Aachan was an important member with great contribution to AKB, but personally I believe there are also many great members (such as Yuko, Sayaka, Mariko, & Tomochin) who imo contributed no less to the success of AKB, but will never receive the splendor of Aachan's graduation.
If it were up to me, I would have tuned down Aachan's graduation a bit, & at least give Yuko, TakaMina, Mayu, Jurina, Rena, & Sayaka equal treatment. Sayaka might be a bit of a surprise, & not nearly as popular, but I think she is severely under-appreciated & really deserve with it her behind-the-scene work (like TakaMina). I would also like to give members like Yuki, Mariko, KojiHaru, Tomochin the same level of treatment, but can accept seeing them ending up with a send-off a tier below the aforementioned members.
Realistically thou, I only see TakaMina (& maybe Jurina) getting such grand graduation.