i like the processing in #1, good warm colour and texture in the clouds. but the hotspot of the sun and the rather uninteresting silhouettes of the buildings detract from the shot.
Suggestion: black out all the highlights in the foreground - pipes, roof-tops, etc. Juz leave the a black silhouette again the gorgeous cloud and sun. Use unsharp mask to refine the lines including the lining of the clouds.