I picked 1 and can get into 2. While all the "freedom" is nice, I find too much time is spent figuring out what is in the GM's head. It the same reason I do not like mysteries (separate from discovery, which is the heart of exploration) in RPGs, few GMs can consistently provide the right information at the right level, at the right time and in an interesting way. Since I am an easily bored player, I prefer some structure and lots of action. As long as your story is interesting, I'll agree to follow the rails.
As I once told my GM - I do my thinking at work. I game to kick some butt.