There's this dichotomy in hypnosis between being authoritarian and direct or being indirect and permissive. New hypnotists often want to know which is "better", and the answer is always "it depends". Happy with that answer? :p
Okay, enough with the "it depends" and "everyone is different" fluff. It's not a "red wine or white?" kind of preference. It's more of a scalpel or sword kind of thing. There really is a right choice - it just depends on the context and what you're trying to do. Behold! The criteria for choosing!