Batman's "son" vs The orginal Green Arrow's legit son.
DRA
Draco69Snarky Slytherin
Nightwing has WAY more experience. However Connor Hawke is one of the best Martial Artists in the DC universe. Nightwing could win through trickery. It would be close.
MAI
Mainstreamlighting the way
I read that he was in the top 5...I don't think he could beat Nightwing or Batman though.especially Batman.