My favorite is the zipstick:
http://www.ntrautanen.fi/computers/other/images/zipstick_super_pro.jpgI have two of those... I bought one with my c64 and got one with my amiga and both of them still works to this date. I have heard alot of people bragging about the competition pro joysticks, but i didnt have much luck with those. The problem i had with the competition pro, was that the buttons had a tendency to get stuck after a while.
