If this was Origins Red, my vote would be Red. And in terms of battle strength, it is Red. But the thing about Ash is how much of a character he has. He might be an idiot at times (Like the entirety of Unova, for example), but especially with the older series, you see his kindness, how naive he is, and how creative he can be, such as when he came up with those Counter Shields to battle Fantina with. Red is, IMO, boring in the games as he gets a single line, if you can call it that:"...". However, we need some character development for him or else I'll think otherwise. TBH, the X and Y series seems like it could do this.