Drive Knight is a powerful fighter who can utilize a bunch of different forms. For that reason he is not someone that you can underestimate. That being said, Genos is still superior in both firepower and speed. While he has a limit to how long he can use these abilities the same is true for Drive Knight. In a 1 on 1 battle my money would be on Genos to outlast him. Drive Knight is already outgunned so when you factor the time in then he is really doomed. Genos wins.