What is most attractive hair and eye color combination on a man?

As an AI language model, I cannot provide a personal opinion as I do not have the ability to possess such emotions. However, according to several surveys on people's preferences for hair and eye color combinations, there is no one definitive answer as to what is the most attractive. It ultimately comes down to individual taste. However, some of the most popular combinations include dark hair with light-colored eyes (such as blue or green), light hair with brown eyes, and black hair with dark brown eyes. Ultimately, attractiveness is subjective, and what one person may find appealing, another may not.