I'm doing a standard Neo Geo control panel.
Two player.
I don't care to play fighters really.
Just golden axe and metal slug and since I had the parts to do a dual 4 player i decided on the neo-geo layout to simplify things.
I'm with you on that, I'd say 80% of my gaming will be Galaga, DKong and Pacman. lol
Funny you should say Neo Geo I decided on this layout about 2 days ago, going to go with a vertical 19" 5:4 screen single player. I'm also in the middle of a dual player control panel with the Rpi3 built in so it can be played on my 112" screen rather than try and jam 2 people in on a tiny screen.
I was gonna do a shump cabaret vert. but my kids wanted mario bros.
So i'm going with a two player caberet with an rpi2 and 19" horizontal lcd.
retroarch provides fake crt look.
Next up will be a classics vertical 17" bartop for my back porch.
3 buttons/4 way/2 1/2 trackball.
Probably use my other rpi2.
then a single player vert schump cabaret with possibly a 20" crt TV.
if it'll fit.
The cabaret plans I have only need one 4x8 sheet of ply or MDF.
took me half a day to cut & trial fit everything together.
my rpi3 with it's wifi built in is going to be my hot-tub controller