I got the blue train station and blue town hall (both have been remodelled to the fairy tale exteriors though).
I think I like the brown train station and green town hall the best.
My favorite town hall by far is the yellow one, followed by the green and then blue. I am not so hung up on the train station. Whichever color comes out is fine. I don't really notice it. But the yellow town hall is really beautiful. The first time I spawned that color, I was thrilled because I hadn't seen it yet in any of my games. I usually surround it with lemon or perfect orange trees. I just find the color so cheerful and uplifting. That is the color scheme I use if I have perfect oranges in a town. If I am going for a more rustic town, I lean to the green town hall with perfect apple and fir trees. The green and red lends itself to a hardier themed town.
I like the navy and green town hall and I used to not like the blue train station but I got stuck with it and I kinda can?t imagine having any other station color now.