Best Villain!

What's the best ever digimon villain? C'mon, you know what to do! What to weigh before picking: meanness, power, and nastiness.

Edit: Yeah, yeah, what's the difference between meanness and nastiness? I'll let you decide.

Edit 2: I'm allowed my own opinion, so I think NEO is quite the villain. He was created by Barbamon, and I think he's a serious villain, even if he did turn over a new leaf. Further info: http://digimon.wikia.com/wiki/NEO_(Next)#NEO

My
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Out of the seasons I saw (Seasons: 1, 2, some of 3, 6 and 7) mine's got to be DarkKnightmon. He was pure evil (also awesome) and only wanted power. He almost killed his brother so he could become stronger. Or Bagramon. He can transcend dimensions and cause massive damage to the dimension while remaining in another. He also became a good guy and helped the characters in Young Hunters.

NEO IS EVIL!!!!