I am probably in a minority here but I never really liked the Zipstick, and the Competition Pro? Meh.
Me neither, although the only joystick I have is the competition pro. Got quite a few of them. I find that they're too small and awkward to hold. My hand starts to hurt after just a short time using them. But, to be fair, I would not be considered a 'gamer' so my my hands/wrists are not joystick fit.
Aside from the competition pro joysticks I have some CD32 pads but I'm not a fan of these, either. I'd go joystick before I went pad for most scenarios.
The only way for me is the Greek stick, pacman/tomahawk.
Built like a tank, precise movement, satisfying microswitch sound.
Now that looks like a nice joystick. Does it have sucker pads? If not is it easy to hold? I like the fire button too. It looks like a proper arcade style button.