I don't think this thread exsists, at least not recently, and I want to see everyone's favorites! And, of course, why you love them. You know what I mean. That one. THE one. I'll start with my beloved Cha Cha. I found her while thrifting and fell in love. Her color scheme is seen on other ponies, but hers is just....a bit lighter, less lemony, I guess. I love her frizzy curls and her sweet, soft, bouquet symbol.
My favourite pony will forever be my Pretty Parlour Ivy! I have a few other Ivy models but she's my favourite - I played Friendship Gardens obsessively as a child and Ivy was my favourite, her and Light Heart of course
My fave G1 is probably plain old Peachy because she has a lot of sentimental value to me, and my favourite G3 is torn between good ol' Sunny Daze, Periwinkle and Desert Rose! I have many fond memories of playing with my friend's collection of G3 ponies at sleepovers as a kid, now I've probably surpassed her with my 70+ G3 ponies, who would've guessed!
NSS Shady is by far my favourite. She was one of my first but was my most loved and played with pony. (A very close second is Lickety Split and NSS Wind Whistler. These three and I adventured a lot.)