Re: Favourite Villain(s)
I like reading about all the different styles of villain here. I was surprised about how even Eggman/Robotnik can be painted in a curious light when you actually stop to think about him. The believable villains like Loghain have always been a favourite of mine, though I can certainly appreciate the other kinds, when done well.
One set of villains I've always found amusing that hasn't been mentioned here yet, is the various antagonists of the Touhou series, and their strange and often inocent-ish motivations or plots. As something of a theme, they're almost never deliberately trying to incite disaster, but do so anyway as a by-product of some other personal goal, along with a hefty dose of being oblivious to the harm their doing or simply not caring until confronted. The conclusion to nearly all the stories is the "villain" being scolded by the protagonists, and agreeing one way or another to not do it again, or that they were being unreasonable. The epilogue often involves both hero and villain sitting down to casually chat over tea immediately after the fight on more than one occasion.
Two examples...
Remilia Scarlet: 500 year old Vampire.
Villainous activity: Shrouds the land with a magical scarlet mist, that blocks the vampire harming effects of the sun light. No other nefarious plot or special motivation is involved beyond her wanting to be able to stroll about in the daytime, and not much caring about whether others would mind the world turning red. When the protagonists foil her scheme, she's not even really bothered and takes it all in her stride.
Yuyuko Saigyouji: Ancient spirit that watches over and maintains death and the afterlife.
Villainous activity: Steals spring. Which in the setting more or less means hoarding away all the life-force that should arrive in the world to kick-start spring. The reason for doing so is her whim to revive the spirit of a corpse buried beneath a great demon cherry tree in the gardens of her netherworld. The key to doing so, is breaking the seals on the placed on the ancient tree by making it bloom, which requires a massive amount of spirit/life-force. In her rather ditzy mindset, she seems to forget that the rest of the world needs that life-force. No harm intended. Despite her troublesome gardening urges being stopped forcibly, she would have failed regardless, due to not realising that the body under the tree was infact her own, and that there was no waiting spirit locked within after all. It's implied that she would have to knowingly destroy her current self to succeed in the resurrection.
One examples of a Touhou villain that bucks the trend a little, but retains a degree of innocent motivation, is Utsuho. A "Yatagarasu" (Hell raven) who as the pet of one of the keepers of a no longer active section of hell, has the job of keeping the hell fires burning (by stoking it with evil spirits, of course). Since the part of hell she lives in is essentially forgotten and "not in business", she is more or less redundant and depressed by it. When a mysterious god visits to grant her an incredible power that could relight the fires with ease, she gets a bit too excited, and decides that "burn everything!" including the entire surface world, would be a great way to show off this new power and impress/gain the favour of her mistress/owner.
So she doesn't (intend to) burn down the world out of malice, but rather an eagerness to impress her friends and rediscover a lost sense of purpose.
The closest antagonist to being a real "evil" villain, is a bored celestial who literally begins starting disasters and brewing an apocalyptic earthquake, purely as a means of attention seeking and entertainment, despite knowing full well (and hoping) that lots of people will show up intending to stop her games and punish her. Even despite the no shits given attitude, it's evident that she never really was aiming for total calamity, but was still going to make people fight to prevent it. Describing her as a masochistic troll with too much power and spare time on her hands might be more accurate than truly evil. The conclusion to her story doesn't involve tea this time, but instead booze, peaches, and helping to rebuild the protagonists house that she destroyed for the lulz.