^ Personally I really like the Racing Chopper. It's fun. It's what I own and use and I don't hold back any with it, but I accept there is more risk of damage if I hit a rock or land a wonky hit. I like something that cuts like a light saber so it's worth it to me. But I wouldn't necessarily recommend one for just anybody.
The standard Light Chopper is already light and thin enough (and won a cutting competition this year in standard configuration), and it will tolerate some mishap. So it's probably a better fit for most people.