Two things jump out at me here; 1. I am about 6' 2-3" depending on what convenient store I'm leaving, and around 290-300 lbs depending on what leg I put on the scale. You don't get much more "meat" on the bones than me unless you are stuck ridding a Rascal scooter to buy the next load of feed at the grocery store. My dd is a pitcher, and I have tested your theory on getting whacked in various anatomical locations, and I have yet to find an area on my ample body that does not cause me pain. Getting hit by a pitch HURTS!
2. Having already described my physical attributes, and having read your dd's reaction to getting hit by a come-backer to the circle, I would not like to meet her in a dark alley. I believe I would hand her the keys to my car, my wallet, some gas money from the front pocket, and inform her that her new car pulls a little to the left. I would imagine anyone short of Chuck Norris would do the same.