* XBox, PlayStation, Gamecube, Dreamcast consoles supported.
** Available at an additional cost.
I was impressed by each of these controllers, each for different reasons. The Hot Rod was impressive for its low price and genuine Happ controls, the X-Arcade for its ability to work with game consoles and ability to reprogram the key assignments without the use of software, and the SlikStik Classic for its amazing variety of arcade controllers and sheer size.
The X-Arcade and the Hot Rod are roughly the same size, and are best suited for desktop or coffee table use. The SlikStik is much more at home on an arcade cabinet, or where you have the room. Speaking of room, if you play a lot of two player games with friends, the SlikStik will make for a much more enjoyable experience.
In the end, I don't think you can go wrong with any of these controllers, as each fills a different "niche" in the arcade controller ecosystem. When shopping for a controller, just figure out your budget, what you want out of the controller, how you plan on using it, and then make an informed choice. Happy gaming!