Board Thread:General Discussion/@comment-1031724-20161023204704/@comment-1031724-20161029215547

If he does return, then what? He is said to have infinite power, maybe he's even more powerful than Thanos. (Thanos is most powerful in the universe, but the Dark Dimension is a whole different world) If they were to fight, Dormammu would kill Thanos. Unless Thanos had the Infinity Gauntlet, maybe that could defeat Dormammu.

But if we haven't seen the last of him, that just gives me another villain to wait for his return. (It would have to be in a Doctor Strange sequel, which would be Phase 4)

Also, Vanko wasn't one-dimensional, and Zemo and Kaecilius had tragic backstories. Even Ronan and Ultron had motives that seemed less sinister even though their genocidal goals were obviously very evil.

To Star Wars, Darth Vader reformed right before his death, plus I consider the true villain of Star Wars to be the Emperor, who currently holds the position for my number one favorite villain death, combining falling and spectacular light shows. Also, Empire couldn't have been a satisfactory last film because it had a dark ending. As for Lecter, despite being the most prominent villain in the films, he didn't actually seem the main villain of any of them (instead being the three you mentioned), and he's kind of a likeable villain anyway, however demented, and it was good to have Buffalo Bill, Verger, and Dolarhyde take the fall.

And if the villains had been more interesting and memorable - which I think all but Cross were - people would only be more disappointed to see them die. I knew the MCU seemed too good to be true, that people simultaneously liked it while it had my favorite kind of ending...