It depends on what I'm rating.
I feel like 👍👎 would work well if I'm likely to have either a positive or negative experience. I think that's the case for something where you generally have a non-neutral expectation. For example if I go on holiday that experience is usually non-neutral (i.e. positive or negative). Same for watching a movie. Etc. Maybe negative expectations too like going to the dentist. It's likely 👎, but if it's not negative then we'll experience it as positive (👍). Generally we wouldn't consider it neutral. (Except when it becomes routine.)
For something that can have a neutral experience (something less exciting, routines, etc) the 😄😐😠 might make more sense. That said, I would research the feelings people associate with those specific emoji. For example the middle one doesn't feel neutral to me. Feels negative/sad/perplexed. The last one feels angry. Not all negative experiences are anger.
You could also combine it like so: 👎😶👍
We decided to not use emoji at all in this case! Rather have clear answers with text.
Thanks everyone for your answers 👍🏼️
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