Poll - Is Muay Thai the best striking martial arts for a MMA fighter?

Do you think that Muay Thai is the best martial arts style to learn in order to become an effective MMA striker? Or is any striking style (i.e. Karate) useful for MMA? This question does not focusing on the grappling and groundwork needed for MMA fights but rather on the striking (punches, kicks, knee strikes, etc.) used in MMA matches.

For other martial arts questions & issues, please visit the main Martial Arts Polls section.