So, what does this do for you? Many things! Here are the key advantages: No calibration required In all versions of PJ64 (even PJ64k) go to Options > Configure Controller Plugin > Save Profile. Still, it is overall the best plugin for general use These mupen64plus and Project 64 plugins use the direct controller access feature offered by my N64 to USB adapters (versions 3 and up) to let the emulated game communicate with the controllers directly. Often much more accurate and compatible than Jabo's plugin, and has a wealth of options, though it can be slower on lower end machines, and may not work on integrated graphics.
Glide64 - Also comes with Project64 as of version 2.1.