Quoted from RobT:X-Men has a unique PF layout. I think that pin blows. But by contrast, Tron has a similar layout to X-Men, and I think Tron is great!
So, yeah, I do believe that PF design really isn't what makes a pin fun to play more often than not.
Sort of backs my theory that both SM and ACDC's success is not Ritchie as much as Lyman.