Sorry if this is kind of a vague, "n00bish" post that's been done to death in the past, but I didn't happen to see one around here and after a few weeks of checking I figured this particular branch of the forum could use a new thread.
So, who is your favorite villain in all the Star Wars material you've read/watched/heard ("
I like the radio play version of Boba Fett better!" who knows, maybe someone out there does). This could include any of the movies, books, comics, whatever. If you can't nail it down to one villain, though, a short list would do

As for me...it's hard to say. I ease the question for myself by personally not considering Anakin a
true villain- granted he's great at it, but I look at the character from a complete perspective and sort of think of Vader as this twisted form of Anakin that got created. Much like Obi Wan summed it up in the OT

That said... Vader is prett darned cool.
But, Thrawn! Whoa. An extremely smart, competent, cool-headed military leader who calmly "weeds out" only that or those which hinder the "war machine" and promotes those who are intuitive and thus helpful. No revenge or anger drive Thrawn, just an absolute will to create a powerful military force to control and perhaps even protect the Empire. I daresay Thrawn, though his campaign obviously went a bit, shall we say, awry at the end, was perhaps a far more competent villain than any of the Sith.
Palpatine isn't my favorite... he's horrid and absolutely evil, an embodiment of all it represents, and as such he's a needed driving force in the story, but as someone to be hated in my thinking.
I need to get going on some more EU so I can learn about Ysanne Isard and Admiral Daala and such. I'm steering clear of the NJO though, so no Vong for me. Although, I have to say the fan-concieved idea that Thrawn wanted to restore the empire so as to defend against the Vong, having discovered them in his time on the outer edges of the Galaxy, is a very interesting one.
And yes, I have done my research enough to know I'm offending them each time I simply call them the Vong

They killed Chewie dammit!
So anyway, I'd say Thrawn and Vader for me.
EDIT: while he's not cool enough to make my list, I figure no one else would mention such a thing, so I just wanted to dredge up this image for everybody: Rokur Gepta, the Sorceror of Tund! Surely that was the greatest villain in the entire saga...
Actually, I'm tempted to do a custom of the fellow one day. But Vuffi Raa and a young Lando would come first

Actually, I've really got parts waiting for me to make a Vuffi Raa...