Thomas Shey
Legend
My reality is much less binary than the poll implies.
For example, the GM vs the group choosing the campaign. For the last three campaigns I've been a part of, there was an active discussion. But not a discussion among equals. The players got input, but the GM got more input. The players talked about preferences, but the GM had power say yes or no at a level the players didn't have. So I can't say the group decided, but I also can't say the GM decided.
I think in my personal experience there's more negative influence on both sides. In other words, its easier for the group as a whole or the GM individually to kill a game, but not to make one happen. That's because it requires both sides to be present in the end. (I'm assuming for purposes of this that just shopping another GM or more players is impractical or undesirable).