For people pulling for Vegeta, be warned: the grind to Dokkan him is not going to be easy. He takes three different kinds of Awakening medals to max out. You need seven of the two that drop from the event normally, and then seven of the SSJ2 Vegeta medal which you get from trading in Pudding treasures. Each medal costs 8 treasures, which means you need to grind 56 Puddings at bare minimum in order to get the medals necessary to Dokkan him. And from the looks of it, you can only pick up two Puddings at a time from each run of the third stage of the event, so this...is gonna take some effort to do.
Good luck, folks.