I guess we'll never agree which one is better
Even based on looks alone, the toynami legioss is awful (if it was a 100% IMAI model kit copy I would have considered buying it).
The CM's legioss/tread is infinitely better built. And, although I'm a lineart accuracy nazi, I like the liberties taken by CM's.
I'm a huge Mospeada fan, but toynami's offerings -> pass!!!