I have flown the 150hp Super Cubs, I now own a 90hp Super Cub, and I have flown a Top Cub and a Carbon Cub. I would say the closest to the original is a Top Cub. But, it’s heavy and it’s slow. Closest to embodying the essence of what a Super Cub was designed to be in 1949, but brought into the modern Era is the Carbon Cub. An X Cub is probably closer, but haven’t flown one of those.