I can tolerate a series of choices you might select in conversation--maybe nothing more than what I've seen in Golden Sun, but ultimately if the main character speaks on his own its a serious breach of RP etiquette. What if he doesn't speak like me? It's not an accurate representation of the player since vocabulary, vernacular and attitude vary from individual to individual. I've played a series of hacks by one one hacker and have found the contemptuous attitude towards authority and an overall smart alecky nature of the protagonist simply doesn't give me a genuine feeling of an RPG.
Any decision making in pokemon is really just best left to a YES/NO option.