Not quite. The two-Chimera option is cheaper. I do not have any Chariots yet and only 3 Crushers and 1 Chimera. I do have all the dogs though. So money-wise the second option is better for me. I also feel like 4 Crushers in a unit make them a bit more durable.
But option 1 certainly has more punch to it due to more Crushers and one more Chariot.