Well since the Evil Queen has the word Evil in her name, it is easy to conclude that she is….you know……evil. And she is set squarely against two of the undeniably good characters in the show, Emma and Snow. For these reasons, I think Regina is destined to be defeated. I think ultimately it will be Emma who defeats Regina, but she will definitely have help from many quarters, with Rumplestiltskin among them.
Does this make Rumple good? I don’t think so. Except in a “the enemy of my enemy is my friend” sort of way. So is Rumple good or evil? On the surface, he seems to do evil things. We have seen him kill, although his murder of the Dark One and the soldiers was arguably justified. He certainly lies. He certainly manipulates people. But again, his manipulation is only possible because people want something for nothing. They want a shortcut. The only selfless deal we have seen so far was Belle, who sacrificed herself to save her village. Rumple presumably created the curse, which seems to be a pretty evil entity. But again, I think it is reasonable to wait and see what his end-game is before passing final judgment on that. By the time it’s all over it may look like the ends justify the means.