In Johto, Whitney, for reasons already said. I would normally say Chuck, but without Dynamic Punch from the original games, he's nothing. As for Kanto, Blue takes the cake. He's got some serious ish on that team. Overall though, looking at rematches as well as the first battles, Blue still wins this one. He's tough the first time, and every time after. ...Unless you're level 100, then that's a different story, but...