Indecision on the River Thames

This is the classic view of Big Ben, shot from across the River Thames in London.  I was there firing brackets left and right, and as a result have several hundred shots from here, all slightly different.  As you can see there was some nice drama in the sky that night, but that led me to a point of indecision: do I process this HDR in color or does it look better in black and white?  

I decided to offer up both and get YOUR feedback.  What do you think?

I like how the orange color just pops, as well as the streetlight on the bridge, in the color version.  But in the monochrome the details of the Parliament buildings are richer, and the shadows of the buildings in the river seem to stand out hard to decide.