I think so far, my favourite protagonist has to be Nate/Rosa, both have one of the best rivals as a best friend, Hugh, both live in a city rather than a small town, both took on the now more dangerous Team Plasma, and finished the job that Hilbert/Hilda started, whilst gaining N's trust themselves, both have taken on Every single gym leader and champion to have ever existed (Pokemon world tournament), and well, you saw them in that animated promo, the fact they got that treatment just adds to their repertoire.