Security of using sudo rather than su?

[Felipe Alfaro Solana]

> So, why don't you use your own password then, as it is the default
> setting, instead of configuring a root password? There is no need to
> provide an extra root password when you can authenticate yourself by
> your own one.

For normal usage, it's fine to authenticate using one password, but
for doing administrative things, I want to use a different password.
In case someone guessed my normal user password, he/she should also
guess one additional password to get root privileges.