I do like how Vergil has a lot in common with me. He prefer quiet activities like I do. He's also a quiet person, and I'm pretty quiet unless you are able to get me to break down my mental walls for whatever reason. I'm fairly cynical, and can be dark in my sarcasm.
I also would be less likely to use a gun. Mostly out of being nervous. I like pointy weapons better. I would rather have weapons like gloves with claws, though... I'm more like Nero in most of my personality, but Vergil and I could get along if I just was able to let my Asperger's not be a jerk and take over once I opened my mouth. He'd be telling me not to bring coffee to his house, too... :<