I do like My Little Pony! I've actually liked it well before Friendship is Magic was created...I was born in the early 90s just as the first wave of My Little Pony toys from the 1980s (Gen 1) was starting to be phased out, and I even had about six of the 80s ones that an older girl across the street gave me when I was very young. Gen 3 MLP came along when I was about 11 years old, rekindling my interest in the classic ponies I did have, and after some Googling re: Gen 1 MLP, I adored it....I just thought it was incredibly imaginative, colorful, fantastical, and very, very cute, and I was sorry I'd missed out on most of it by being born in the 90s. I even started collecting Gen 1 ponies whenever I found them at flea markets, antique stores and the like. I did kinda like Gen 3, and had some of the ponies from that era, but I just wasn't as fond of them as I was of Gen 1.
...But anyway, as far as FiM goes, I really enjoy it too! ....Except for I'm now hopelessly behind on watching the actual show. I don't even know which season it's currently on.
I do watch clips on Youtube when I get the chance, and I really like how they throw in little shoutouts to the 80s cartoon in some episodes (one of the season finale episodes of FiM refers to Tirek and Scorpan, two antagonists from the Gen 1 MLP pilot episode
Rescue From Midnight Castle, and I believe the Smooze had an appearance in another episode after that, only it was green as opposed to the oozing, sentient purple slime from the 1986 My Little Pony Movie. And of course there's the episode with Moondancer, a pony from the G1 pilot).
My favorite FiM pony is definitely Fluttershy...she's just so sweet, kind, always thinks of others before herself, and I just relate to her a lot. As for my favorite song, there are several that I like...."Giggle at the Ghosties," "Smile, Smile, Smile," "You'll Play Your Part," and Discord's "Glass of Water Song."
I also liked it when Fluttershy sang "Hush Now, Quiet Now," to the CMC...I kinda wish we'd gotten to hear her sing the entire song. My favorite episode would probably be the season finale episode with Tirek that I mentioned.