Road to El Dorado could've been better. I found this guy to be an extremely one-dimensional cartoon character. He has no backstory elements, no hidden dephts, no personality layers. Nothing.
It's a shame how El Dorado isn't the kino that it could've been. The writing has a bunch of issues, and one of them is that this guy is a one-dimensional cartoon protagonist with an exaggerated personality that ends up getting tedious.