Well I use zipsticks for most things! I find that they are the best for quick responses and the microswitches are fab. Only problem is the lack of 2 buttons
I have 3 sega arcade sticks as well which are great but I think they need a bit of a clean because sometimes they don't fully return to the centre.
I also have an asciiware megastick which is pretty good.
You can also rely on a megadrive pad too, I must have about 20 ordinary md pads (nearly all official) and 2 six button ones, I had to cut some membranes out of a standard md pad to get the second 6 button pad to work though.
I hated the bug it was horrible imo
Is there a way to make a zipstick into a 2 button stick? Can't be that hard surely?