>>720338552
This page has the RAW number for the non-EE members:
https://sorcerers.net/Games/BG2/bg2_npc_banters.php
The best for catty dialogue is usually to mix a little evil into a good Party. Korgan and Edwin are great for this. Edwin in particular thanks to all the reactions to his personal quest, and Korgan because needling weaklings is his hobby. You just have to watch out for Edwin&Neera, Korgan&Aerie, or Keldorn&Everyone evil except Korgan.
Good-Neutral conflicts to the point of leaving the party are extremely rare. Honestly I can only think of the Charname-Aerie-Haer'Dalis love triangle causing that.