Like them both, but I have to go with #2. Reason being the picture has good textures, which is what i find most outstanding in the picture, the color distracts from the texture, while #2 focuses the texture and tones, making it more uniform and at the same time causing the old buildings to stand out more. Because the picture was shoot on a bright day it casts a shadow on the front of the building which lacks the color, on the 2nd picture the front becomes another tone..
I do not think you would have gotten the same effect in #2 if the grass and trees where green, while fall colors are nice and common, going with #2 makes the picture a more unusual shot
Anyhow really like #2