Why do you like your OTP or any other pairing you ship?
For me, I'll start with my OTP, SpikeBelle
I don't ship it cause I hate Spairty. Spairty is alright, but Spike seems to be more of the CMC's age in my opinion. Sweetie Belle does seem to be the type that would go for the whole Romance style that Spike could also do. And they're cute together.
FlashLight, I don't just ship it cause of those movies. I believe he has a chance if done right, but some are big babies about their waifu. Flash does need some more CD, but it can work out if the right people work on him.
Fluttermac, I'll say this and this only. It's cute.
SoarinDash, Big time hints people, or ponies, or dragons, or whatever you are.
PinkieBurn, I got onto this before that episode came out, so stop whining. I can see them together, because of how they can be. Both do a good job at welcoming ponies to their hometowns and they're cute.
I'll provide more later.