Which do you prefer?

I've uploaded the black and white version of this before, but I'm really interested in which image people prefer, as I can't decide myself.

It was the colours in the scene that originally caught my eye when I walked past; with the faded paintwork and the dusting of moss giving it a pastel look. On the other hand, I think a high-contrast black and white look can work well with industrial subjects.

So, please help me improve my photographer's eye and tell me which looks better (or if neither works for you!) Thank you.