I love Jxy/0xy for those arpeggios, Hxy/4xy for that vibrato, Gxx/3xx for that tone portamento, Axx and Txx/Fxx for their time warp powers, and I really, really love Mxx and Nxy for that trick where you can make a pattern play one way at first, and then sound different later on it is repeated despite being the same exact pattern. 8xx/Xxx are my best buds when it comes to stereo usage, as well as Pxy. Also, hail Vxx and Wxy/Gxx and Hxy for in-module fade-outs. Wow, I just realised I love a whole lot of effects.