These may not be the best performance of Mako, but my (recent) favourites are: Miniskirt no Yousei AKB48 SHOW version (duet with Owada Nana). IIRC it's episode 49. I don't think I find it uploaded online anywhere. Heart-gata Virus. A lot of people like the Kojima-kyoudai version (Haruna, Natsuki, Mako), but personally my favourite version has been the one in the encore of Miichan Seitansei this year. The entire 14th gen stage, as mentioned above. Check out the unit part. I love that entire part. Kamikyokushibari's RIVER. Eve no Adam no Abarebone's Tomodemo Namida with Naachan. Makokii in AKB Kouhaku 2013 is very cute, but it's not a very good performance IMO. Of course, Seijun Philosophy when it won RH. I probably listed almost all performances where Mako was center of attention (lol).