I don't consider Trixie a villain. But, if she's on the list, easily her! Sunset Shimmer would be second.

Trixie turned evil when she took over Ponyville and banished Twilight Sparkle

That...wasn't her fault. It was her amulet. Plus, they deserved it for how they treated her.

She went seeking for revenge when Twilight made her look like a fool which is why she got the amulet in the first place so she could get revenge on her and everypony else.

Exactly. Seeking revenge does not make someone evil. I seek revenge all the time on people who deserve it. Does that make me evil? No, it makes me want to right what has been wronged.

It all depends on what kind of revenge your doing if your trapping an entire town banishing ponies and using them for your own use and entertainment it could be seen as evil by some or most ponies.

I hope you don't mind if I interject. What did Twilight do to deserve it? All she did was save everyone's lives when Trixie couldn't.. She didn't try to humiliate Trixie, She saved her life, yet she still wanted to seek out revenge.

If Twilight had just faced Trixie from the start instead of running away, none of the chain of events would've happened. Trixie would've left, Snips and Snails wouldn't have gotten the Ursa, and Trixie wouldn't have had to be forced into something she clearly couldn't handle and thus force Twilight to accidentally humiliate her by showing her up. So, by running away, Twilight made it so Trixie wouldn't see reason and that's what set things into motion.

Yet Trixie still seeked revenge no matter how you look at it and chose to do so she lets things blind her from what actually happened and just see's it as she see's it and goes from there

That... is honestly very irrational thinking. Trixie acts like a braggart and it's Twilight's fault? Would you have rather her just shown up Trixie just because she didn't like her like everyone else did? I would rather have her forced to do it then just humiliate her on purpose. Twilight did the responsible thing, even if it was for irresponsible reasons. Twilight didn't force her to do anything. I honestly just can't see your point of view on this, sorry. Still, even then, it was accidental. Would you get revenge on someone for an accident that they are very loosely connected to, especially if that person saved your life?

I gotta go with Nightmare Moon on this one.

Well I personally love Discord. Sombra was awesome, Chrysalis was also awesome. Trixie was pretty cool. Blueblood was honestly, kind of sexy, if he counts. Kind of hard to say. I would go with Discord because there can be so many interpretations of him, and he has an awesome and unique design.

Blueblood i wouldn't really consider a villain just more of a pain in the flank. XD

Well I'm mainly going by antagonist standard, since The Flim Flam brothers weren't villains, just con-men. Antagonist is pretty much any character you are not supposed to like for the most part

All of them are pretty cool, but I'd probably say Discord's my favorite. He has that way of making the situation not just torturous, in some cases, but outright hilarious.

Agreed :)

Oh yeah kind of forgot about Gilda XD

Hmmm... reformed it's a toss up between Gilda and Trixie. I use them a lot. Nightmare moon a bit but only on the Ask Nightmother Moon Tumblr.

For regular ones The Flim-Flam Brothers were good at showing how the Apples are monopolists cornering the market.

No others leap forward. I don't really like villains save when they are defeated.

Gilda wasn't reformed... Trixie, yeah, but not Gilda, not yet... *crosses fingers for her to return in Season 4 to have a proper conclusion to her story*

Discord, Chrysalis and Flam, I love all the villain songs, I hope the next season gives us plenty more of them!~
Also, why Flam? cuz he did this: http://www.furaffinity.net/view/8852198/

Also, do the 3 rival chefs from MMM Mystery on the Friendship Express count? what about those dragons and the Diamond Dogs? Snooty Canterlot Elite? Lightning Dust? Silver Spoon and Diamond Tiara? Do any of them count as villains? Just adding them to the list of possible suspects...

If they count I like Diamond and Silver. They're mostly harmless and make a sweet couple. Prince Blueblood is mostly harmless and just ridiculous. That's good for a laugh.

Hmm, I hope he makes a return appearance along with Appleoosa and the Buffalo (but mostly for that Braeburn. ^_^)
Do you like Babs Seed too? Love her song!~

Great song, great character, expands the world a bit and gives us another member of the CMC.

I too want more buffalo, though I know I will be disappointed with a second trip because the production folks will never let Braeburn and Lottle Strongheart be together.

queen chrysalis by far!