Okay so I just made a Which Trilogly had the Best Lightsaber Fights Poll, and I'd like to know if that means I'm not allowed to make a Which Trilogly had the worst Lightsaber Fights poll Poll because of their similarites?
You wouldn't be allowed to make that poll because of the question itself. The guidelines state that posts should be phrased positively, not in a way that asks what things are "bad" or the "worst".
Furthermore, you will get an answer to this question from your earlier poll already: the option that gets the least amount of votes is obviously the least favorite among the voters, i.e. the "worst".