Bullseye is a hired Assassin Kingpin is his arch foe for sure
Bullseye
Wilson Fisk
Bullseye is a hired Assassin Kingpin is his arch foe for sure
X-Men Forever
Catholic guilt.
There is no ignorance, there is knowledge.
There is no fear, there is power.
I am the heart of the Force.
I am the revealing fire of light.
I am the mystery of darkness.
In balance with chaos and harmony,
Immortal in the Force.
Kingpin will probably win this poll, but Bullseye seems like DD's natural enemy to me. They are both awesome foes, though.
Keep your hands to yourself, leave other people's things alone, and be kind to one another.
I think this is a case where there is no clear standout between the two: Bullseye is a great physical match for DD, but just doesn't come across as that smart, whilst Kingpin is a great mastermind, but he simply isn't built for fighting DD on rooftops.