Also being a former firstbaseman, I eco jwill535's comments. A good firstbaseman, can eliminate potential base hits with a good stretch, and eliminate errors by other fielders with a good scoop. Plus a good scoop can help ease a fielders mind, knowing they don't have to make a perfect throw every time. So if they do need to hurry their throw, they're probably still going to get the out, even if they throw one in the dirt. I always told my infield, just get it in my general direction and I'll take care of the rest. Prince is well below what I would consider "average". If I were grading him in APBA baseball, I'd give him a 2, maybe a borderline 3. Any other excellent 1B defenders present or past anyone can think of? Keith Hernandez, Don Mattingly, and I would even say Cecil Cooper. Albert Pujols has worked very hard at his defense and has turned himself into one of the best in the game today. Those are just a few that come to mind.