I'd be happy to have a few less characters and more devlopment on the ones that are included. I never used or even talked to GOTO and I never used T3.
Bastila, Carth and Mission were good in KOTOR1. Visas, Mira, Handmaiden and Kreai were good in KOTOR2. HK47 was brilliant in both games. THen there were just some "other" characters that I basically relegated to the Ebon Hawk for most of the journey.