User blog comment:Dragonfly82/What's more worst? Bad ending or cliffhanger?/@comment-25176701-20150904050505

I'll be the first one in this discussion to actually answer the original question.

Bad endings are totally worse. Bad endings dissapoint and may even make you dislike the show more overall.

Cliffhangers are good because they make you excited and unable to wait for next season. It also creates the speculation and theories people have. Cliffhangers are fun.