Goku has taken some wicked lives, the likes of which stand out even more because they’re so few and far between in Dragon ...

Of course, staying ahead of someone like Goku is not an easy task, and Gohan's strength tends to fluctuate heavily depending on his training regimen, so he rarely keeps his lead over his father.

The Kaio-Ken doesn't always get the respect it deserves in DBZ, but it's arguably a cooler transformation than Super Saiyan with even better fights.