That's tough to answer, cause i've seen really big, tall guys get beat up by smaller, tougher guys all the time. These big, tall guys i'm talking about don't know how to fight and just can't get angry, they're very soft and could get bullied easily. It gets to the point where some one has to come in and defend them. It's sad.
Now a big guy 250lbs, 6'2", who could fight, you don't want any of that.