I'll take a shot just to get this going.
1. Looks? Subjective, but i like the looks of a Hill over the Bingham (that's coming from a Bingham builder
)
2. fps? Not sure that their is a fair way to compare. I think they would come in pretty much the same.
3. hand shock? I'm pretty sure that my Bingham designs are less hand shock all across the board.
4. shootability? Subjective in the mind and hands of the shooter. Also subjective in terms of defining "shootability".
Not going to enter an opinion on which is better!