Simple answer: 2-3" pin with 2-3oz top weight. There's very little that your driller can't do with that ball. If you're not sure then you probably aren't looking for a more exotic layout that would benefit from a longer or shorter pin length.
As J_Mac said, having a longer pin, 3-4", allows you to put the pin higher above the midline without necessarily requiring a balance hole or drilling the fingers deeper. A higher pin placement will give you length and backend compared to a lower pin placement, which will be earlier and smoother. "Total hook", whatever that means, isn't really affected. Neither "hooks" more than the other.
Likewise, shorter pin placements allow you to place the pin lower, usually below the fingers, without requiring a weight hole or drilling the thumb deeper.
SH
