I am still working on my control panel layout. Just to clarify, the "buttons" (i.e. circles in my graphic) along the top are as follows:
left: coin, P1, TBD (I've seen as mouse, but may get rid of this one)
right: coin, P2, TBD (same as above)
center: 4-Way JS 45-degree, 4-Way JS, Spinner, 2 game buttons
I know it may sound silly, but Qbert is one of my family's favorite games so I wanted to include a dedicated 4 way joystick mounted correctly. I've gone back and for with U360 but they are relatively expensive vs. just throwing in a cheap additional 4 way. I've played Qbert (and other 4 way classics) with an 8 way and don't like it at all, and don't really think I will like playing all the classics with any kind of stick with a round/no restrictor.
Just my thoughts at this time, but nothing solidified yet.