The Millennium Old Dilemma

So, it's the last round of voting, time to make a final decision, and I find myself in an awfull position.

There are 16 themes. Some of them, in my opinion, are better and some worse for the jam overall: they either allow more unique games to be made or may end up in everyone having the same idea. So I could judge them on that.

At the same time some of them sparked beautifull ideas for games I would love to make, and some didn't. So I could judge them on that.

Question is: what should I do? Should I aim for a better jam for everyone or an opportunity to express myself?

Would love to hear your thoughts, 'cause I'm stumped.