You can download Jabo's 1.5 with PJ64 1.5 (Jabo don't want that his work will distributed without PJ64).
About best graphics:
All plugins has got strong and weak sides. The most will work optimal with Jabo's but there are other plugins which emulate some games better than Jabo's. For example: Some games are emulated better with glide64 (like Mariokart), or the camspy is almost perfect emulated with TR64 opengl 0.8.5, but Rice's plugin has got 2xSai, which doubles the texture-size, but has compatibility problems, and some games will work better with an older version of Jabo's plugin, like South Park Rally (but I don't think anyone would like to know that
), Starfox, Mariokart and a few others.
Conclusion: There doesn't exist a perfect plugin.
All the plugins mentioned above (excepting Jabo's) are downloadable from emutalk's download-section.