I don't want to invest hudreds of $$$ to different arcade stick so after some checking I have found that several consoles have different kind of controller adapters.
Secondly and perhaps mor importantly, my wife wouldn't be happy to see several large sticks located around living room. I have enough job to hide all consoles from eye.

PS2 has some interesting stick choices, but I don't know how adapters to different machines work. And whether it is smart choice for PS3/XO which may be future shmup distributores through PSN and XBLA.
My question:
What would be most practical single-stick solution that I could use in other platforms through controller adapters etc.?