
Anyway. . .
I think Epona wins, because Link is allowed more freedom while riding her, as opposed to the linearity of train, which is limited to set paths [tracks]. Granted, the train is faster, but its limitations - a negative - outweigh its positive aspect (superior speed), in my opinion. I have yet to play
Spirit Tracks for myself, but the train seems to be limiting factor from what I've heard. I guess I'll have to see for myself whenever I have the chance. For now, though: Epona > Train.
Amidoinitrite?