I don't prefer one to the other, but I've found the dice-less systems can work well.
I'm not a big fan of purely narrative games. There needs to be some risk for there to be a game, in my opinion. In the dice-less systems I enjoy, that risk comes from whatever resource mechanic the game system uses. There's no randomness, but players cannot simply do everything. They have to make choices.
I'm a fan of Solipsist, although I admit it's not a game for everyone. There's also one called Pace where each player has a certain number of tokens they could use to accomplish tasks, and they had to manage their use of the tokens.
If there aren't meaningful risks and decisions to make, though, then it seems like it's more collaborative storytelling.