That stupid 12" Luke Skywalker and Tauntaun was the worst for me. And after all of the effort, I returned it because it was trash.
But the Dewback was rough as well (I seem to remember getting mine for 20 bucks).
Oh, yeah! And on a side note. I bought my son a little truck (Hot Wheels or similar). And not only did it have the cardboard base with the little plastic eyelits that the twisties were strung through and twisted around, but the point where the twisties crossed was glued! That was the TRUE PITA (I thought I was the only one who used that and I wonder if fafita pitas are named that because the are so much trouble to eat)!