Beat me to it, anon.
I think I'm most like Trixie, because I can be a very jealous person at times.
Also, I know it's bad and self-destructive, but when I have significant problems with other people, I will often cut ties with them completely in an attempt to start fresh.
So when I think of Trixie traveling around by herself with her wagon, I can't help but feel an affinity with her.
I have trouble forgetting when others have wronged me, so I end up brooding a lot.
I spend a lot of time by myself and I'm fine with that, but I sometimes neglect my friendships as a result. So maybe I'm kind of like Moondancer as well?
We're probably all mixes of a couple ponies.