Aw, not a whole lot of Discord love? Tisk tisk, what a shame. As a primary, I had a VERY tough time picking. In the end though, I had to pick the first character that broke through my guard when I was begrudgingly sampling the first couple episodes back in 2011, and she had me at, "Especially if there's candy apples in there! ....What, those things are GOOD!" Yep, Pinkie Pie got me to break my stone face and burst out with a hearty laugh. I couldn't help but love the character. I also love how, despite being so opposite from the rest of her family, they all are still close-knit. Her interactions with Maud have been nothing but fantastic! Also also, I love sweets. I swear, I got like.... 28 sweet teeth. Also also also, I love her reality/physics-defying silliness. _______________
As a secondary, hands-down Discord (if ya couldn't tell). The appearance of that magical sneaky chaotic trickster not only showed that the new MLP was gonna push some serious "little-girls-show" bounds, but he was an amazing and incredibly loved villain!
So sorry if you disagree, but Discord is best everything. _______________ Then for tertiary, I couldn't help but pick Derpy. I love the derp, and am occasionally one with the derp myself. (not to mention I use the word Derp all the time) I was leaning a bit toward Lyra, but mostly because of fan-made stuff. Derpy is just all the derp, all the time, and incredibly adorable for it. I've heard she started as a mistake in a regular background pony, but the fact that the creators took that mistake and created an amazing character out of it is pretty magical, and I feel that that alone speaks worlds for everyone who is perfectly imperfect. What a lovable character! <3