Grunker
RPG Codex Ghost
Agree on #1. #2 if you want to make the choice, then act as one unit. If you act as 2 people, then you're independent players in the same game world.
FFS. Do I have to paint it in huge letters? Following around your friend passively while waiting for a chance to actually play the game is NOT fun.
You two are trying to convince to choose between bad or evil:
1) either follow around passively
2) or forget about co-op dialogue
The entire point of my ravings is that it doesn't have to be like that. There is no reason players can't explore and investogate at their pwn pace while simultaneously take part in the well-designed co-op action around town.